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https://dev.to/bingkahu/seeking-peer-connections-for-codechat-p2p-testing-4inh#connection-invitation | Seeking Peer Connections for CodeChat P2P Testing - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse bingkahu Posted on Jan 12 Seeking Peer Connections for CodeChat P2P Testing # coding # github # watercooler # gamedev Project Overview I am currently testing the stability of CodeChat , a decentralized communication tool built with vanilla JavaScript and PeerJS. Unlike traditional messaging apps, this platform establishes direct WebRTC links between browsers, bypasses central databases, and ensures that data stays between the two connected nodes. Connection Invitation I am looking to establish active peer links to test the performance of the data channels and the "Identity Vault" local authentication system. How to Test it If you are interested in testing the node-to-node link: Access the repository at https://github.com/bingkahu/p2p-comms . Open the application in a modern browser. Use the 8-Digit Room ID provided in the sidebar to link your node with another persons ID (If you do not have another person you can simply open another tab, open the same link use your own account and test it by messaging yourself). Current Testing Focus Latency: Measuring message delivery speed across different network environments. Admin Controls: Testing the master broadcast and session wipe functions. UI Feedback: Evaluating the glassmorphism interface across various screen resolutions. Future Technical Milestones End-to-End Encryption: Integrating SubtleCrypto for payload security. P2P File Buffering: Enabling direct document transfer via ArrayBuffer streams. Contact and Collaboration For more detailed technical discussions or to coordinate a specific testing window, please contact me directly: Email: mgrassi1@outlook.com GitHub: bingkahu Legal and Privacy Notice By connecting to this prototype, you acknowledge that this is an experimental P2P environment. No data is stored on a server, but your Peer ID is visible to the connected party to facilitate the link. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse bingkahu Follow Full-stack developer focused on decentralized communication and privacy-centric web applications. Lead maintainer of CodeChat, an open-source peer-to-peer messaging platform built on WebRTC and PeerJS Education School Work Student Joined Jan 11, 2026 More from bingkahu I let an AI with "20 years experience" architect my project and it was a disaster # github # opensource # ai # programming 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://git-scm.com/docs/gitignore | Git - gitignore Documentation About Trademark Learn Book Cheat Sheet Videos External Links Tools Command Line GUIs Hosting Reference Install Community Table of Contents NAME SYNOPSIS DESCRIPTION PATTERN FORMAT CONFIGURATION NOTES EXAMPLES SEE ALSO GIT English ▾ Localized versions of gitignore manual English Français 日本語 Português (Brasil) українська мова 简体中文 Want to read in your language or fix typos? You can help translate this page . Topics ▾ Setup and Config git config help bugreport Credential helpers Getting and Creating Projects init clone Basic Snapshotting add status diff commit notes restore reset rm mv Branching and Merging branch checkout switch merge mergetool log stash tag worktree Sharing and Updating Projects fetch pull push remote submodule Inspection and Comparison show log diff difftool range-diff shortlog describe Patching apply cherry-pick diff rebase revert Debugging bisect blame grep Email am apply imap-send format-patch send-email request-pull External Systems svn fast-import Server Admin daemon update-server-info Guides gitattributes Command-line interface conventions Everyday Git Frequently Asked Questions (FAQ) Glossary Hooks gitignore gitmodules Revisions Submodules Tutorial Workflows All guides... Administration clean gc fsck reflog filter-branch instaweb archive bundle Plumbing Commands cat-file check-ignore checkout-index commit-tree count-objects diff-index for-each-ref hash-object ls-files ls-tree merge-base read-tree rev-list rev-parse show-ref symbolic-ref update-index update-ref verify-pack write-tree Latest version ▾ gitignore last updated in 2.52.0 Changes in the gitignore manual 2.52.0 2025-11-17 2.42.1 → 2.51.2 no changes 2.42.0 2023-08-21 2.41.1 → 2.41.3 no changes 2.41.0 2023-06-01 2.34.1 → 2.40.4 no changes 2.34.0 2021-11-15 2.33.1 → 2.33.8 no changes 2.33.0 2021-08-16 2.32.1 → 2.32.7 no changes 2.32.0 2021-06-06 2.22.2 → 2.31.8 no changes 2.22.1 2019-08-11 2.22.0 2019-06-07 2.20.1 → 2.21.4 no changes 2.20.0 2018-12-09 2.19.1 → 2.19.6 no changes 2.19.0 2018-09-10 2.17.0 → 2.18.5 no changes 2.16.6 2019-12-06 2.10.5 → 2.15.4 no changes 2.9.5 2017-07-30 2.5.6 → 2.8.6 no changes 2.4.12 2017-05-05 2.3.10 no changes 2.2.3 no changes 2.1.4 2014-12-17 2.0.5 2014-12-17 Check your version of git by running git --version NAME gitignore - Specifies intentionally untracked files to ignore SYNOPSIS $XDG_CONFIG_HOME/git/ignore, $GIT_DIR/info/exclude, .gitignore DESCRIPTION A gitignore file specifies intentionally untracked files that Git should ignore. Files already tracked by Git are not affected; see the NOTES below for details. Each line in a gitignore file specifies a pattern. When deciding whether to ignore a path, Git normally checks gitignore patterns from multiple sources, with the following order of precedence, from highest to lowest (within one level of precedence, the last matching pattern decides the outcome): Patterns read from the command line for those commands that support them. Patterns read from a .gitignore file in the same directory as the path, or in any parent directory (up to the top-level of the working tree), with patterns in the higher level files being overridden by those in lower level files down to the directory containing the file. These patterns match relative to the location of the .gitignore file. A project normally includes such .gitignore files in its repository, containing patterns for files generated as part of the project build. Patterns read from $GIT_DIR/info/exclude . Patterns read from the file specified by the configuration variable core.excludesFile . Which file to place a pattern in depends on how the pattern is meant to be used. Patterns which should be version-controlled and distributed to other repositories via clone (i.e., files that all developers will want to ignore) should go into a .gitignore file. Patterns which are specific to a particular repository but which do not need to be shared with other related repositories (e.g., auxiliary files that live inside the repository but are specific to one user’s workflow) should go into the $GIT_DIR/info/exclude file. Patterns which a user wants Git to ignore in all situations (e.g., backup or temporary files generated by the user’s editor of choice) generally go into a file specified by core.excludesFile in the user’s ~/.gitconfig . Its default value is $XDG_CONFIG_HOME/git/ignore. If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/ignore is used instead. The underlying Git plumbing tools, such as git ls-files and git read-tree , read gitignore patterns specified by command-line options, or from files specified by command-line options. Higher-level Git tools, such as git status and git add , use patterns from the sources specified above. PATTERN FORMAT A blank line matches no files, so it can serve as a separator for readability. A line starting with # serves as a comment. Put a backslash (" \ ") in front of the first hash for patterns that begin with a hash. Trailing spaces are ignored unless they are quoted with backslash (" \ "). An optional prefix " ! " which negates the pattern; any matching file excluded by a previous pattern will become included again. It is not possible to re-include a file if a parent directory of that file is excluded. Git doesn’t list excluded directories for performance reasons, so any patterns on contained files have no effect, no matter where they are defined. Put a backslash (" \ ") in front of the first " ! " for patterns that begin with a literal " ! ", for example, " \!important!.txt ". The slash " / " is used as the directory separator. Separators may occur at the beginning, middle or end of the .gitignore search pattern. If there is a separator at the beginning or middle (or both) of the pattern, then the pattern is relative to the directory level of the particular .gitignore file itself. Otherwise the pattern may also match at any level below the .gitignore level. If there is a separator at the end of the pattern then the pattern will only match directories, otherwise the pattern can match both files and directories. For example, a pattern doc/frotz/ matches doc/frotz directory, but not a/doc/frotz directory; however frotz/ matches frotz and a/frotz that is a directory (all paths are relative from the .gitignore file). An asterisk " * " matches anything except a slash. The character " ? " matches any one character except " / ". The range notation, e.g. [ a-zA-Z ] , can be used to match one of the characters in a range. See fnmatch(3) and the FNM_PATHNAME flag for a more detailed description. A backslash (" \ ") can be used to escape any character. E.g., " \* " matches a literal asterisk (and " \a " matches " a ", even though there is no need for escaping there). As with fnmatch(3), a backslash at the end of a pattern is an invalid pattern that never matches. Two consecutive asterisks (" ** ") in patterns matched against full pathname may have special meaning: A leading " ** " followed by a slash means match in all directories. For example, " **/foo " matches file or directory " foo " anywhere, the same as pattern " foo ". " **/foo/bar " matches file or directory " bar " anywhere that is directly under directory " foo ". A trailing " /** " matches everything inside. For example, " abc/** " matches all files inside directory " abc ", relative to the location of the .gitignore file, with infinite depth. A slash followed by two consecutive asterisks then a slash matches zero or more directories. For example, " a/**/b " matches " a/b ", " a/x/b ", " a/x/y/b " and so on. Other consecutive asterisks are considered regular asterisks and will match according to the previous rules. CONFIGURATION The optional configuration variable core.excludesFile indicates a path to a file containing patterns of file names to exclude, similar to $GIT_DIR/info/exclude . Patterns in the exclude file are used in addition to those in $GIT_DIR/info/exclude . NOTES The purpose of gitignore files is to ensure that certain files not tracked by Git remain untracked. To stop tracking a file that is currently tracked, use git rm --cached to remove the file from the index. The filename can then be added to the .gitignore file to stop the file from being reintroduced in later commits. Git does not follow symbolic links when accessing a .gitignore file in the working tree. This keeps behavior consistent when the file is accessed from the index or a tree versus from the filesystem. EXAMPLES The pattern hello.* matches any file or directory whose name begins with hello. . If one wants to restrict this only to the directory and not in its subdirectories, one can prepend the pattern with a slash, i.e. /hello.* ; the pattern now matches hello.txt , hello.c but not a/hello.java . The pattern foo/ will match a directory foo and paths underneath it, but will not match a regular file or a symbolic link foo (this is consistent with the way how pathspec works in general in Git) The pattern doc/frotz and /doc/frotz have the same effect in any .gitignore file. In other words, a leading slash is not relevant if there is already a middle slash in the pattern. The pattern foo/* , matches foo/test.json (a regular file), foo/bar (a directory), but it does not match foo/bar/hello.c (a regular file), as the asterisk in the pattern does not match bar/hello.c which has a slash in it. $ git status [...] # Untracked files: [...] # Documentation/foo.html # Documentation/gitignore.html # file.o # lib.a # src/internal.o [...] $ cat .git/info/exclude # ignore objects and archives, anywhere in the tree. *.[oa] $ cat Documentation/.gitignore # ignore generated html files, *.html # except foo.html which is maintained by hand !foo.html $ git status [...] # Untracked files: [...] # Documentation/foo.html [...] Another example: $ cat .gitignore vmlinux* $ ls arch/foo/kernel/vm* arch/foo/kernel/vmlinux.lds.S $ echo '!/vmlinux*' >arch/foo/kernel/.gitignore The second .gitignore prevents Git from ignoring arch/foo/kernel/vmlinux.lds.S . Example to exclude everything except a specific directory foo/bar (note the /* - without the slash, the wildcard would also exclude everything within foo/bar ): $ cat .gitignore # exclude everything except directory foo/bar /* !/foo /foo/* !/foo/bar SEE ALSO git-rm[1] , gitrepository-layout[5] , git-check-ignore[1] GIT Part of the git[1] suite gitignore About this site Patches, suggestions, and comments are welcome. Git is a member of Software Freedom Conservancy | 2026-01-13T08:49:12 |
https://dev.to/sagarparmarr/genx-from-childhood-flipbooks-to-premium-scroll-animation-1j4#quick-access-want-to-play-right-away | GenX: From Childhood Flipbooks to Premium Scroll Animation - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Sagar Posted on Jan 13 • Originally published at sagarparmarr.hashnode.dev GenX: From Childhood Flipbooks to Premium Scroll Animation # webdev # performance # animation Build buttery-smooth, Apple-style image sequence animations on canvas + the tiny redraw hack that saves up to 80% GPU/battery power Hey there, fellow web dev enthusiasts! 🖐️ Remember those childhood flipbooks where you'd scribble a stick figure on the corner of your notebook pages, flip through them furiously, and suddenly – bam – your doodle was dancing? That's the nostalgic spark behind one of the coolest tricks in modern web design: image sequence animations . You've seen them on slick landing pages – those buttery-smooth, scroll-driven "videos" that feel alive as you navigate the site. But here's the plot twist: they're not videos at all . They're just a clever stack of images, orchestrated like a symphony on a <canvas> element. In this post, we're diving into how these animations work, why they're a game-changer for interactive storytelling, and – drumroll please 🥁 – a tiny optimization that stops your user's device from chugging power like it's training for a marathon. Let's flip the page and get started! ✨ Classic flipbook magic – the inspiration behind modern web wizardry Quick access (want to play right away?) → Live Demo → Full source code on GitHub Now let's get into how this magic actually works... Chapter 1: The Flipbook Reborn – What Is Image Sequence Animation? Picture this: You're on a high-end e-commerce site, scrolling down a product page. As your finger glides, a 3D model spins seamlessly, or a background scene morphs from day to night. It looks like high-def video, but peek at the network tab – no MP4 in sight . Instead, it's a barrage of optimized images (usually 100–200 WebP files) doing the heavy lifting. At its core, image sequence animation is digital flipbook wizardry : Export a video/animation as individual frames Preload them into memory as HTMLImageElement objects Drive playback with scroll position (0% = frame 1, 100% = last frame) Render the right frame on <canvas> Why choose this over <video> ? 🎮 Total control — perfect sync with scroll, hover, etc. ⚡ Lightweight hosting — images cache beautifully on CDNs, compress with WebP/AVIF 😅 No encoding drama — skip codecs, bitrates, and cross-browser video nightmares But every hero has a weakness: lots of network requests + heavy repainting = GPU sweat & battery drain on big/retina screens. We'll fix that soon. Smooth scroll-triggered image sequence in action Chapter 2: Behind the Curtain – How the Magic Happens (With Code!) Here's the typical flow in a React-ish world (pseudocode – adapt to vanilla/Vue/Svelte/whatever you love): // React-style pseudocode – hook it up to your scroll listener! const FRAME_COUNT = 192 ; // Your total frames const targetFrameRef = useRef ( 0 ); // Scroll-driven goal const currentFrameRef = useRef ( 0 ); // Current position const rafRef = useRef < number | null > ( null ); // Update target on scroll (progress: 0-1) function onScrollChange ( progress : number ) { const nextTarget = Math . round ( progress * ( FRAME_COUNT - 1 )); targetFrameRef . current = Math . clamp ( nextTarget , 0 , FRAME_COUNT - 1 ); // Assuming a clamp util } // The animation loop: Lerp and draw useEffect (() => { const tick = () => { const curr = currentFrameRef . current ; const target = targetFrameRef . current ; const diff = target - curr ; const step = Math . abs ( diff ) < 0.001 ? 0 : diff * 0.2 ; // Close the gap by 20% each frame const next = step === 0 ? target : curr + step ; currentFrameRef . current = next ; drawFrame ( Math . round ( next )); // Render the frame rafRef . current = requestAnimationFrame ( tick ); }; rafRef . current = requestAnimationFrame ( tick ); return () => { if ( rafRef . current ) cancelAnimationFrame ( rafRef . current ); }; }, []); function drawFrame ( index : number ) { const ctx = canvasRef . current ?. getContext ( ' 2d ' ); if ( ! ctx ) return ; // Clear, fill background, and draw image with contain-fit const img = preloadedImages [ index ]; ctx . clearRect ( 0 , 0 , canvas . width , canvas . height ); // ...aspect ratio calculations and drawImage() here... } Enter fullscreen mode Exit fullscreen mode Elegant, right? But here's the villain... The Plot Twist: Idle Repaints = Battery Vampires 🧛♂️ When users pause to read copy or admire the product, that requestAnimationFrame loop keeps churning 60 times per second … redrawing the exact same frame over and over. On high-DPI/4K retina screens? → Massive canvas clears → Repeated image scaling & smoothing → Constant GPU compositing The result: laptop fans kick into overdrive, the device heats up, and battery life tanks fast. I've seen (and measured) this in real projects — idle GPU/CPU spikes that turn a "premium" experience into a power hog. Time for the hero upgrade! Here are real before/after screenshots from my own testing using Chrome DevTools with Frame Rendering Stats enabled (GPU memory + frame rate overlay visible): Before: ~15.6 MB GPU idle After: ~2.4 MB GPU idle Before Optimization After Optimization Idle state with constant repaints – 15.6 MB GPU memory used Idle state post-hack – only 2.4 MB GPU memory used See the difference? Before : ~15.6 MB GPU memory in idle → heavy, wasteful repainting After : ~2.4 MB GPU memory → zen-like efficiency This tiny check eliminates redundant drawImage() calls and can drop idle GPU usage by up to 80% in heavy canvas scenarios (your mileage may vary based on resolution, DPR, and image size). Pro tip: Enable Paint flashing (green highlights) + Frame Rendering Stats in DevTools → scroll a bit, then pause. Watch the green flashes disappear and GPU stats stabilize after applying the fix. Battery saved = happier users + longer sessions 🌍⚡ Chapter 3: The Hero's Hack – Redraw Only When It Matters Super simple fix: track the last drawn frame index and skip drawImage() if nothing changed. useEffect (() => { let prevFrameIndex = Math . round ( currentFrameRef . current ); const tick = () => { // ... same lerp logic ... currentFrameRef . current = next ; const nextFrameIndex = Math . round ( next ); // ★ The magic line ★ if ( nextFrameIndex !== prevFrameIndex ) { drawFrame ( nextFrameIndex ); prevFrameIndex = nextFrameIndex ; } rafRef . current = requestAnimationFrame ( tick ); }; rafRef . current = requestAnimationFrame ( tick ); return () => cancelAnimationFrame ( rafRef . current ! ); }, []); Enter fullscreen mode Exit fullscreen mode Why this feels like a superpower Scrolling → still buttery-smooth (draws only when needed) Idle → zen mode (just cheap math, no GPU pain) Real-world wins → up to 80% less idle GPU usage in my tests Pro tip: Use Paint Flashing + Performance tab in DevTools to see the difference yourself. Try it yourself! Here's a minimal, production-ready demo you can fork and play with: → Live Demo → Full source code on GitHub Extra Twists: Level Up Your Animation Game ⚙️ DPR Clamp → cap devicePixelRatio at 2 🖼️ Smart contain-fit drawing (calculate once) 🚀 WebP/AVIF + CDN caching 👀 IntersectionObserver + document.hidden → pause when out of view 🔼 Smart preloading → prioritize first visible frames The Grand Finale: Flipbooks for the Future Image sequence animations are the unsung heroes of immersive web experiences – turning static pages into interactive stories without video baggage . With this tiny redraw check, you're building cool and efficient experiences. Your users (and their batteries) will thank you. Got questions, your own hacks, or want to share a project? Drop them in the comments – let's geek out together! 🚀 Happy coding & happy low-power animating! ⚡ Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Sagar Follow Joined Mar 28, 2024 Trending on DEV Community Hot Prompt Engineering Won’t Fix Your Architecture # discuss # career # ai # programming What was your win this week??? # weeklyretro # discuss Inside the SQLite Frontend: Tokenizer, Parser, and Code Generator # webdev # programming # database # architecture 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Trusted Member Guide With a community of over one million members on DEV, we could use a hand! We would greatly appreciate your help in enforcing our Code of Conduct and assisting new community members by kindly welcoming them & guiding them through site mechanics. Trusted Member Actions Clickable Demo Table of Contents What is a Trusted Member? How to Use Your Trusted Member Actions Becoming a Trusted Member What is a Trusted Member? Trusted Members are individuals who have been granted basic moderation abilities to assist us by moderating discussions, reporting problematic content, and fostering positive interactions among members. We select individuals for this role who we believe will be kind, friendly, inclusive, and help to uphold our Code of Conduct. 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https://dev.to/govind_mishra_0c4dfca8d9b | Govind Mishra - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions Govind Mishra 404 bio not found Joined Joined on Dec 28, 2025 More info about @govind_mishra_0c4dfca8d9b Badges Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close Post 1 post published Comment 0 comments written Tag 0 tags followed Building a "No-Lag" 2D Multiplayer Game (Clueland) with Next.js, Express, and WebSockets Govind Mishra Govind Mishra Govind Mishra Follow Dec 28 '25 Building a "No-Lag" 2D Multiplayer Game (Clueland) with Next.js, Express, and WebSockets # nextjs # gamedev # performance # node Comments Add Comment 1 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/eachampagne/websockets-with-socketio-5edp#references-and-further-reading | Websockets with Socket.IO - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse eachampagne Posted on Jan 12 Websockets with Socket.IO # javascript # node # webdev # networking This post contains a flashing gif. HTTP requests have taken me pretty far, but I’m starting to run into their limits. How do I tell a client that the server updated at midnight, and it needs to fetch the newest data? How do I notify one user when another user makes a post? In short, how do I get information to the client without it initiating the request? Websockets One possible solution is to use websockets , which establish a persistent connection between the client and server. This will allow us to send data to the client when we want to, without waiting for the client’s next request. Websockets have their own protocol (though the connection is initiated with HTTP requests) and are language-agnostic. We could, if we wanted, implement a websocket client and its corresponding server from scratch or with Deno … or we could use one of the libraries that’s already done the hard work for us. I’ve used Socket.IO in a previous project, so we’ll go with that. I enjoyed working with it before, and it even has the advantage of a fallback in case the websocket fails. Colorsocket For immediate visual feedback, we’ll make a small demo where any one client can affect the colors displayed on all. Each client on the /color endpoint has a slider to control one primary color, plus a button to invert all the other /color clients. (The server assigns a color in order to each client when the client connects, so you just have to refresh a few times until you get all three colors. I did make sure duplicate colors would work in sync, however.) The /admin user can turn primary colors on or off. Here’s the app in action: The clients aren’t all constantly making requests to the server. How do they know to update? Establishing Connections When each client runs its <script> , it creates a new socket, which opens a connection to the server. // color.html const socket = io ( ' /color ' ); // we’ll come back to the argument Enter fullscreen mode Exit fullscreen mode The script then assigns handlers on the new socket for the various events we expect to receive from the server: // color.html socket . on ( ' assign-color ' , ( color , colorSettings , activeSettings ) => { document . getElementById ( ' color-name ' ). innerText = color ; controllingColor = color ; currentBackground = colorSettings ; active = activeSettings ; colorSlider . disabled = ! active [ controllingColor ]; document . getElementById ( ' active ' ). innerText = active [ controllingColor ] ? ' active ' : ' inactive ' ; colorSlider . value = colorSettings [ controllingColor ]; updateBackground (); }); socket . on ( ' set-color ' , ( color , value ) => { currentBackground [ color ] = value ; if ( controllingColor === color ) { colorSlider . value = value ; } updateBackground (); }); socket . on ( ' invert ' , () => { inverted = ! inverted ; document . getElementById ( ' inverted ' ). innerText = inverted ? '' : ' not ' ; updateBackground (); }); socket . on ( ' toggle-active ' , ( color ) => { active [ color ] = ! active [ color ]; if ( controllingColor === color ) { colorSlider . disabled = ! active [ color ]; } document . getElementById ( ' active ' ). innerText = active [ controllingColor ] ? ' active ' : ' inactive ' ; updateBackground (); }); Enter fullscreen mode Exit fullscreen mode Meanwhile, the server detects the new connection. It assigns the client a color, sends that color and current state of the application to the client, and sets up its own handlers for events received through the socket: // index.js colorNamespace . on ( ' connection ' , ( socket ) => { const color = colors [ colorCount % 3 ]; // pick the next color in the list, then loop colorCount ++ ; socket . emit ( ' assign-color ' , color , colorSettings , activeSettings ); // synchronize the client with the application state socket . data . color = color ; // you can save information to a socket’s data key, but I didn’t end up using this for anything socket . on ( ' set-color ' , ( color , value ) => { colorSettings [ color ] = value ; colorNamespace . emit ( ' set-color ' , color , value ); }); socket . on ( ' invert ' , () => { socket . broadcast . emit ( ' invert ' ); }); }); Enter fullscreen mode Exit fullscreen mode The /admin page follows similar setup. Sending Information to the Client Let’s follow how user interaction on one page changes all the others. When a user on the blue page moves the slider, the slider emits a change event, which is caught by the slider’s event listener: // color.html colorSlider . addEventListener ( ' change ' , ( event ) => { socket . emit ( ' set-color ' , controllingColor , event . target . value ); }); Enter fullscreen mode Exit fullscreen mode That event listener emits a new set-color event with the color and new value. The server receives the client’s set-color , then emits its own to transmit that data to all clients. Each client receives the message and updates its blue value accordingly. Broadcasting to Other Sockets But clicking the “Invert others” button affects the other /color users, but not the user who actually clicked the button! The key here is the broadcast flag when the server receives and retransmits the invert message: // server.js socket . on ( ' invert ' , () => { socket . broadcast . emit ( ' invert ' ); // broadcast }); Enter fullscreen mode Exit fullscreen mode This flag means that that the server will send the event to every socket except the one it’s called on. Here this is just a neat trick, but in practice, it might be useful to avoid sending a post to the user who originally wrote it, because their client already has that information. Namespaces You may have noticed that the admin tab isn’t changing color with the other three. For simplicity, I didn’t set up any handlers for the admin page. But even if I had, they wouldn’t do anything, because the admin socket isn’t receiving those events at all. This is because the admin tab is in a different namespace . // color.html const socket = io ( ' /color ' ); // ======================= // admin.html const socket = io ( ' /admin ' ); // ======================= // index.js const colorNamespace = io . of ( ' /color ' ); const adminNamespace = io . of ( ' /admin ' ); … colorNamespace . emit ( ' set-color ' , color , value ); // the admin page doesn’t receive this event Enter fullscreen mode Exit fullscreen mode (For clarity, I gave my two namespaces the same names as the two endpoints the pages are located at, but I didn’t have to. The namespaces could have had arbitrary names with no change in functionality, as long as the client matched the server.) Namespaces provide a convenient way to target a subset of sockets. However, namespaces can communicate with each other: // admin.html const toggleFunction = ( color ) => { socket . emit ( ' toggle-active ' , color ); }; // ======================= // index.js // clicking the buttons on the admin page triggers changes on the color pages adminNamespace . on ( ' connection ' , ( socket ) => { socket . on ( ' toggle-active ' , color => { activeSettings [ color ] = ! activeSettings [ color ]; colorNamespace . emit ( ' toggle-active ' , color ); }); }); // ======================= // color.html socket . on ( ' toggle-active ' , ( color ) => { active [ color ] = ! active [ color ]; if ( controllingColor === color ) { colorSlider . disabled = ! active [ color ]; } document . getElementById ( ' active ' ). innerText = active [ controllingColor ] ? ' active ' : ' inactive ' ; updateBackground (); }); Enter fullscreen mode Exit fullscreen mode In all of the examples, events were caused by some interaction on one of the clients. An event was emitted to the server, and a second message was emitted by the server to the appropriate clients. However, this is only a small sample of the possibilities. For example, a server could use websockets to update all clients on a regular cycle, or get information from some API and pass it on. This demo is only a small showcase of what I’ve been learning and hope to keep applying in my projects going forward. References and Further Reading Socket.IO , especially the tutorial , which got me up and running very quickly Websockets on MDN – API reference and glossary , plus the articles on writing your own clients and servers ( Deno version ) Cover Photo by Scott Rodgerson on Unsplash Top comments (2) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand Art light Art light Art light Follow Trust yourself🌞your capabilities are your true power. ❤Telegram - ✔lighthouse4661 ❤Discord - ✔lighthouse4661 Email art.miclight@gmail.com Pronouns He/him Work CTO Joined Nov 21, 2025 • Jan 12 Dropdown menu Copy link Hide Wow, this is an incredibly clear and practical explanation! I really appreciate how you broke down the client-server flow with Socket.IO—it makes even the trickier concepts like namespaces and broadcasting feel approachable. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Lars Rye Jeppesen Lars Rye Jeppesen Lars Rye Jeppesen Follow Aspartam Junkie Location Vice City Pronouns Grand Master Joined Feb 10, 2017 • Jan 12 Dropdown menu Copy link Hide Great article. A question though: why use Socket.IO when NodeJs now has it natively built in? 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Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse eachampagne Follow Joined Sep 5, 2025 More from eachampagne Graphing in JavaScript # data # javascript # science 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Challenges Follow Hide This is the official tag for submissions and announcements related to DEV Challenges. Create Post about #devchallenge Build your DEV Profile, level up or show off your skills, earn special badges, and have fun. For live and upcoming challenges, visit our challenge page . Older #devchallenge posts 1 2 3 4 5 6 7 8 9 … 75 … 238 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu # MindsEye: Ledger-First AI Architecture New Year, New You Portfolio Challenge Submission PEACEBINFLOW PEACEBINFLOW PEACEBINFLOW Follow Jan 13 # MindsEye: Ledger-First AI Architecture # devchallenge # googleaichallenge # portfolio # gemini 3 reactions Comments 1 comment 36 min read From 2AM Debugging to $1000: How I Built My AI-Powered Portfolio New Year, New You Portfolio Challenge Submission ANIRUDDHA ADAK ANIRUDDHA ADAK ANIRUDDHA ADAK Follow Jan 13 From 2AM Debugging to $1000: How I Built My AI-Powered Portfolio # devchallenge # googleaichallenge # portfolio # gemini Comments Add Comment 3 min read This Portfolio Scrolls Different (And That’s Intentional) Dhanalakshmi.d.gowda23 Dhanalakshmi.d.gowda23 Dhanalakshmi.d.gowda23 Follow Jan 12 This Portfolio Scrolls Different (And That’s Intentional) # devchallenge # googleaichallenge # portfolio # gemini Comments Add Comment 2 min read Coding Challenge Practice - Question 101 Bukunmi Odugbesan Bukunmi Odugbesan Bukunmi Odugbesan Follow Jan 13 Coding Challenge Practice - 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https://dev.to/suzuki0430/cka-certified-kubernetes-administrator-exam-report-2026-dont-rely-on-old-guides-mastering-the-534m#exam-results | CKA (Certified Kubernetes Administrator) Exam Report 2026: Don’t Rely on Old Guides (Mastering the Post-2025 Revision) - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. 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Report Abuse Atsushi Suzuki Posted on Jan 13 CKA (Certified Kubernetes Administrator) Exam Report 2026: Don’t Rely on Old Guides (Mastering the Post-2025 Revision) # kubernetes # certification # devops # learning Despite being active as an AWS Community Builder (Containers) and a Docker Captain, for some reason, I had never really touched Kubernetes before. So, starting in November 2025, I began studying for 1-2 hours on weekdays outside of work. I am the type of person who finds it easier to solidify foundational knowledge when I have a specific goal like a certification, so I decided to aim for the Certified Kubernetes Administrator (CKA) first. Certified Kubernetes Administrator (CKA) Why I am writing this article If you search for "CKA Pass" you will find many experience reports. However, there are still not many articles written after the exam scope revision in February 2025. Having actually taken the exam, I felt that the "sense of difficulty" and "essential techniques" mentioned in older reports are no longer entirely applicable. I wrote this article as a reference for those who are planning to take the exam in the future. Exam Results I passed with a score of 72% (passing score is 66%). It was my first time taking a hands-on practical exam, and compared to multiple-choice exams, I felt constantly rushed—I couldn't stop sweating. I didn't finish everything within the time limit and didn't have time to go back to the troubleshooting questions I had flagged. Exam Date: 2026/01/11 13:30~ Location: Private room in a co-working space Kubernetes Version: v1.34 Device: MacBook Air (2022, M2, 13.6-inch) Impressions of the New Exam Scope (Post-Feb 2025) and Difficulty To be honest, I felt it was significantly more difficult than the image I had from older experience reports. My personal impression was that it felt about as challenging as the "Killer Shell" simulator (mentioned later). Below is the revised exam scope, and I felt that questions related to the newly added content made up about half of the exam. CKA Program Changes - Feb 2025 While I cannot provide specific details about the questions, you will likely struggle if your understanding of the following newly added topics is weak: Helm Kustomize Gateway API (Gateway, HttpRoute, etc.) Network Policy CRDs (Custom Resource Definitions) Extension interfaces (CNI, CSI, CRI, etc.) Learning Resources Used I used Udemy, KodeKloud, and Killer Shell. Many reports from before the revision said that Udemy and Killer Shell were enough, but my personal feeling is that I was only able to put up a fight because I went as far as doing the additional labs on KodeKloud. Udemy This is the standard Udemy course recommended in almost every report. I bought it during one of their frequent sales. Certified Kubernetes Administrator (CKA) Practice Exam Tests The course consists of video lectures and practice tests (hosted on a separate service called KodeKloud). Since my Kubernetes knowledge was literally zero, I studied each component through the videos before attempting the practice tests. I went through the lectures once and repeated the practice questions I didn't understand multiple times (up to 4 times). For my weak areas (Helm, Kustomize, Gateway API, CRD), I re-watched the lectures several times. Once I could solve over 80% of the practice questions, I tackled the three Mock Exams in the final section until I could solve them perfectly (up to 4 rounds for some). For explanations I didn't quite understand, I asked AI for help. KodeKloud This is the KodeKloud platform included with the Udemy course: Certified Kubernetes Administrator (CKA) Since having only three Mock Exams felt a bit uncertain, I paid for the following course to solve five additional Mock Exams: Ultimate Certified Kubernetes Administrator (CKA) Mock Exam Series Killer Shell When you register for the exam, you get two sessions of the "Killer Shell" exam simulator. It uses the same Remote Desktop environment as the actual exam, so you should absolutely use it to get used to the interface. In my case, since I took the exam on a MacBook, the shortcut keys for commands change in the Remote Desktop, so I was able to practice copy-pasting in the simulator. Note that the simulator access is provided twice, and each session expires after 36 hours. If you want to review after it expires, it’s better to save the answer pages as PDF or HTML. Killer Shell Tips No need to add settings to .bashrc Common tips in older reports, such as "aliases for switching namespaces," are no longer necessary. This is because the current exam format involves using ssh to switch between different environments for each task. Memorize the Documentation URL The browser doesn't automatically open to the documentation page when the exam starts, so make sure you can quickly navigate to https://kubernetes.io/docs . Learn Copy-Paste Shortcuts for Remote Desktop Whether or not you can copy-paste quickly can make or break your pass/fail result. Practice the operations on Killer Shell. Copy (Terminal): Ctrl + Shift + C Paste (Terminal): Ctrl + Shift + V Prepare for Applied Questions Don't just memorize each component; imagine how they combine with others. Simply "memorizing Helm commands" might not be enough for some of the harder questions. Helm + CRD Migration from Ingress → Gateway + HttpRoute, etc. Exam Environment The conditions for the exam environment are strict: "a private space without noise," "no objects on the desk," etc. Unfortunately, I didn't have such an environment at home, so I rented a private room in a co-working space. Interaction with the proctor is via chat, so there is no verbal conversation. However, it seems that even slight noise will be pointed out, so choosing a private room is the safe bet. Instructions from the proctor come in your native language (Japanese in my case), but they seem to be using machine translation, as some instructions were a bit confusing. I assumed the proctor was non-Japanese, so I replied in English (just basic things like "OK," "thanks," etc.). Following the proctor's instructions, I used the webcam to show the room (ceiling, floor, desk, walls), both ears, both wrists, and my powered-off smartphone. It took about 15 minutes to actually start the exam. Also, I didn't use the external monitor at the co-working space, but in retrospect, having a larger workspace would have made things easier, so I probably should have used it. During the exam, I didn't really feel the presence of the proctor, but when I was stuck on a problem and touched my chin, a chat message arrived saying, "Please refrain from gestures that cover your face." Final Thoughts Obtaining the CKA was quite a challenge, but I plan to take the CKAD while I still have this momentum. The second half of 2025 was quite rough at my company and I felt zero personal growth, so I want to make up for that in 2026. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Atsushi Suzuki Follow AWS Community Builder | 15x AWS Certified | Docker Captain Hooked on the TV drama Silicon Valley, I switched from sales to engineering. Developing SaaS and researching AI at a startup in Tokyo. Location Tokyo Joined Mar 11, 2021 More from Atsushi Suzuki I Automated My Air Conditioner with Kubernetes (kind + CronJob + SwitchBot) # kubernetes # containers # iot # docker Practical Terraform Tips for Secure and Reliable AWS Environments # aws # terraform # devops # beginners Fixing the “Invalid Parameter” Error When Registering an SNS Topic for SES Feedback Notifications # aws # security # devops # cloud 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Testing Follow Hide Find those bugs before your users do! 🐛 Create Post Older #testing posts 9 10 11 12 13 14 15 16 17 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Stop Writing Tests Manually - This AI Writes Better Ones SATINATH MONDAL SATINATH MONDAL SATINATH MONDAL Follow Jan 3 Stop Writing Tests Manually - This AI Writes Better Ones # ai # testing # automation # productivity 2 reactions Comments Add Comment 16 min read PAGI::Server: Stress-Testing an Async Perl HTTP Server the Hard Way John Napiorkowski John Napiorkowski John Napiorkowski Follow Jan 1 PAGI::Server: Stress-Testing an Async Perl HTTP Server the Hard Way # architecture # backend # testing # performance 2 reactions Comments 1 comment 4 min read Applying API Testing Frameworks with Postman: Real-World Code Examples Christian Dennis HINOJOSA MUCHO Christian Dennis HINOJOSA MUCHO Christian Dennis HINOJOSA MUCHO Follow Dec 3 '25 Applying API Testing Frameworks with Postman: Real-World Code Examples # testing # tutorial # automation # api 1 reaction Comments Add Comment 3 min read How to Build an End‑to‑End LLM Evaluation Pipeline Kuldeep Paul Kuldeep Paul Kuldeep Paul Follow Nov 29 '25 How to Build an End‑to‑End LLM Evaluation Pipeline # testing # machinelearning # llm # tutorial Comments Add Comment 2 min read I spent 18 years breaking software, now I built a tool that does it faster than I ever could Liudas Liudas Liudas Follow Jan 2 I spent 18 years breaking software, now I built a tool that does it faster than I ever could # showdev # testing # automation # api 1 reaction Comments Add Comment 1 min read Create Reliable Unit Tests with Claude Code Alfredo Perez Alfredo Perez Alfredo Perez Follow Jan 2 Create Reliable Unit Tests with Claude Code # ai # angular # claudecode # testing Comments Add Comment 12 min read Building Bulletproof Data Pipelines: Orchestration, Testing, and Monitoring (Part 3 of 3) Karthikeyan Rajasekaran Karthikeyan Rajasekaran Karthikeyan Rajasekaran Follow Jan 2 Building Bulletproof Data Pipelines: Orchestration, Testing, and Monitoring (Part 3 of 3) # dataengineering # dagster # dataquality # testing Comments Add Comment 9 min read Making Pytest Beautiful: A Complete Guide to Improving Test Output (with Plugins & Examples) Ajit Kumar Ajit Kumar Ajit Kumar Follow Dec 12 '25 Making Pytest Beautiful: A Complete Guide to Improving Test Output (with Plugins & Examples) # pytest # testing # output # formatting 1 reaction Comments Add Comment 3 min read TestRail vs TestLink: A Performance and Cost Analysis Sebastian Rodrigo ARCE BRACAMONTE Sebastian Rodrigo ARCE BRACAMONTE Sebastian Rodrigo ARCE BRACAMONTE Follow Dec 2 '25 TestRail vs TestLink: A Performance and Cost Analysis # testing # devops # qa # api 2 reactions Comments 1 comment 8 min read Introducing Automated Testing Late in a Django + DRF Project: Setup, Requirements, and Best Practices - Part-1 Ajit Kumar Ajit Kumar Ajit Kumar Follow Dec 12 '25 Introducing Automated Testing Late in a Django + DRF Project: Setup, Requirements, and Best Practices - Part-1 # django # pytest # drf # testing 1 reaction Comments Add Comment 3 min read Architecting for Efficiency and Reliability with Performance Testing at Scale Eliana Lam Eliana Lam Eliana Lam Follow Nov 29 '25 Architecting for Efficiency and Reliability with Performance Testing at Scale # testing # architecture # performance # aws Comments Add Comment 1 min read 💥 Break your API before your users do. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse PEACEBINFLOW Posted on Jan 13 # MindsEye: Ledger-First AI Architecture # devchallenge # googleaichallenge # portfolio # gemini New Year, New You Portfolio Challenge Submission 2. Core System Components System Architecture ┌─────────────────────────────────────────────────────────┐ │ INTERFACE LAYER │ │ ┌─────────────┐ ┌─────────────┐ ┌──────────────┐ │ │ │ Dashboard │ │ Explorer │ │ Explanation │ │ │ └─────────────┘ └─────────────┘ └──────────────┘ │ └──────────────────────────┬──────────────────────────────┘ │ ┌──────────────────────────▼──────────────────────────────┐ │ QUERY LAYER │ │ HTTP API │ SQL Interface │ CLI │ └──────────────────────────┬──────────────────────────────┘ │ ┌──────────────────────────▼──────────────────────────────┐ │ PATTERN LAYER (MindsEye) │ │ Transitions │ Policies │ Decisions │ Focus Logic │ └──────────────────────────┬──────────────────────────────┘ │ ┌──────────────────────────▼──────────────────────────────┐ │ LEDGER LAYER │ │ Append-Only Event Nodes │ Immutable History │ └──────────────────────────┬──────────────────────────────┘ │ ┌──────────────────────────▼──────────────────────────────┐ │ INGESTION LAYER │ │ Tool Signals │ Repo Events │ Workflow Triggers │ └─────────────────────────────────────────────────────────┘ Enter fullscreen mode Exit fullscreen mode Component Specifications Ingestion Layer // Event ingestion contract interface IngestionEvent { source : string ; // Origin system (repo, CLI, API) timestamp : number ; // Unix epoch payload : unknown ; // Raw signal data metadata : { branch ?: string ; commit ?: string ; user ?: string ; }; } class Ingestion { async ingest ( event : IngestionEvent ): Promise < NodeID > { const validated = this . validate ( event ); const nodeID = await this . pattern . process ( validated ); return nodeID ; } } Enter fullscreen mode Exit fullscreen mode Ledger Layer // Node schema interface LedgerNode { id : string ; // UUID type : string ; // Classification parent : string | null ; // Previous node children : string []; // Subsequent nodes timestamp : number ; data : { input : unknown ; output : unknown ; metadata : Record < string , unknown > ; }; focus : string ; // Active perspective identifier } // Ledger implementation class Ledger { private nodes : Map < string , LedgerNode > = new Map (); append ( node : LedgerNode ): void { if ( this . nodes . has ( node . id )) { throw new Error ( ' Ledger violation: attempted overwrite ' ); } this . nodes . set ( node . id , Object . freeze ( node )); } query ( filter : LedgerQuery ): LedgerNode [] { return Array . from ( this . nodes . values ()) . filter ( filter . predicate ) . sort (( a , b ) => a . timestamp - b . timestamp ); } } Enter fullscreen mode Exit fullscreen mode Pattern Layer (MindsEye) // Pattern engine interface Transition { from : string ; // Source node ID to : string ; // Target node ID condition : ( node : LedgerNode ) => boolean ; transform : ( input : unknown ) => unknown ; } class MindsEye { private transitions : Transition [] = []; async process ( input : IngestionEvent ): Promise < string > { const currentNode = this . ledger . getCurrent (); const transition = this . selectTransition ( currentNode , input ); const newNode : LedgerNode = { id : generateUUID (), type : transition . to , parent : currentNode ?. id || null , children : [], timestamp : Date . now (), data : { input : input . payload , output : transition . transform ( input . payload ), metadata : input . metadata }, focus : input . metadata . focus || ' global ' }; this . ledger . append ( newNode ); return newNode . id ; } } Enter fullscreen mode Exit fullscreen mode Query Layer -- SQL interface to ledger CREATE VIEW ledger_nodes AS SELECT id , type , parent , timestamp , data ->> 'input' as input , data ->> 'output' as output , focus FROM ledger ORDER BY timestamp DESC ; -- Query by focus SELECT * FROM ledger_nodes WHERE focus = 'feature/auth' ORDER BY timestamp ; Enter fullscreen mode Exit fullscreen mode # CLI interface $ mindseye query --focus = "main" --type = "decision" $ mindseye trace --node = "abc-123" --depth = 5 $ mindseye fork --from = "def-456" --focus = "experiment" Enter fullscreen mode Exit fullscreen mode 3. Workflow Patterns Pattern-Based Execution Workflows are not scripts. They are patterns of valid state transitions. // Traditional workflow (imperative) function traditionalWorkflow ( repo : string ) { const files = scanRepo ( repo ); const analyzed = analyzeFiles ( files ); const report = generateReport ( analyzed ); return report ; } // Pattern-based workflow (declarative) const workflow : Pattern = { nodes : [ ' scan ' , ' analyze ' , ' report ' ], edges : [ { from : ' scan ' , to : ' analyze ' , condition : hasFiles }, { from : ' analyze ' , to : ' report ' , condition : hasAnalysis }, { from : ' analyze ' , to : ' scan ' , condition : needsMoreData } // Branch! ], artifacts : { ' scan ' : ( node ) => node . data . files , ' analyze ' : ( node ) => node . data . insights , ' report ' : ( node ) => node . data . document } }; Enter fullscreen mode Exit fullscreen mode Example: Prompt Execution Pattern STATE: idle ↓ [prompt received] NODE: prompt.received ↓ [validate] NODE: prompt.validated ↓ [execute] NODE: execution.started ↓ [complete] NODE: execution.completed ↓ [generate artifact] NODE: artifact.created ↓ [shift focus] FOCUS: artifact.view Enter fullscreen mode Exit fullscreen mode Each arrow is a ledger entry. Each NODE is immutable. Decision Fork Pattern NODE: decision.required ↓ [evaluate] NODE: decision.evaluated ├─ [option A] → FOCUS: branch/option-a ├─ [option B] → FOCUS: branch/option-b └─ [option C] → FOCUS: branch/option-c Enter fullscreen mode Exit fullscreen mode All three branches exist simultaneously. Focus determines which one is "active." 4. Prompt-Driven Development Prompts as First-Class Objects Prompts are not instructions sent to a model. They are versioned, forkable, traceable artifacts in the ledger. interface Prompt { id : string ; version : number ; parent : string | null ; // Prompt lineage template : string ; variables : Record < string , string > ; metadata : { author : string ; timestamp : number ; effectiveness : number ; // Outcome quality metric }; } class PromptRegistry { private prompts : Map < string , Prompt [] > = new Map (); register ( prompt : Prompt ): string { const versions = this . prompts . get ( prompt . id ) || []; versions . push ( prompt ); this . prompts . set ( prompt . id , versions ); // Ledger entry this . ledger . append ({ type : ' prompt.registered ' , data : { prompt } }); return prompt . id ; } fork ( sourceId : string , modifications : Partial < Prompt > ): Prompt { const source = this . getLatest ( sourceId ); const forked : Prompt = { ... source , id : generateUUID (), parent : sourceId , version : 1 , ... modifications }; this . register ( forked ); return forked ; } } Enter fullscreen mode Exit fullscreen mode Prompt Lineage PROMPT: analyze-code-v1 ↓ [refined] PROMPT: analyze-code-v2 ↓ [forked for Python] PROMPT: analyze-python-v1 ↓ [specialized] PROMPT: analyze-python-async-v1 Enter fullscreen mode Exit fullscreen mode Feedback Loop: Prompt → Code → Ledger ┌─────────────┐ │ PROMPT │ └──────┬──────┘ │ [execute] ▼ ┌─────────────┐ │ CODE │ └──────┬──────┘ │ [run] ▼ ┌─────────────┐ │ LEDGER │ └──────┬──────┘ │ [analyze] ▼ ┌─────────────┐ │ PROMPT v+1 │ (refined based on outcome) └─────────────┘ Enter fullscreen mode Exit fullscreen mode The system learns not by adjusting weights, but by evolving prompts based on ledger patterns. 5. Reusability & Forkability The Same Pattern, Different Focus The MindsEye architecture is focus-invariant . The same pattern can generate entirely different systems by changing focus. // Base pattern: content analysis const basePattern : Pattern = { nodes : [ ' ingest ' , ' parse ' , ' analyze ' , ' output ' ], edges : [ { from : ' ingest ' , to : ' parse ' }, { from : ' parse ' , to : ' analyze ' }, { from : ' analyze ' , to : ' output ' } ] }; // Focus A: Security analysis const securitySystem = applyFocus ( basePattern , { focus : ' security ' , filters : [ ' vulnerabilities ' , ' threats ' ], output : ' security-report ' }); // Focus B: Performance analysis const performanceSystem = applyFocus ( basePattern , { focus : ' performance ' , filters : [ ' bottlenecks ' , ' optimizations ' ], output : ' performance-report ' }); // Focus C: Documentation generation const docsSystem = applyFocus ( basePattern , { focus : ' documentation ' , filters : [ ' public-api ' , ' examples ' ], output : ' api-docs ' }); Enter fullscreen mode Exit fullscreen mode All three systems: Use the same pattern Have different focuses Generate different ledgers Remain architecturally coherent Coherence Preservation No matter how many times the pattern is forked, it remains coherent to the original architecture because: Structural invariants are preserved : Node types, edge types, and transition rules remain constant Focus only affects interpretation : The pattern itself is unchanged Ledgers share a common origin : All forks trace back to the same root node function validateCoherence ( ledgerA : Ledger , ledgerB : Ledger ): boolean { const originA = ledgerA . getOrigin (); const originB = ledgerB . getOrigin (); // Both ledgers must share root ancestry return originA . ancestorOf ( originB ) || originB . ancestorOf ( originA ); } Enter fullscreen mode Exit fullscreen mode This system is not a product—it is a language for building systems. SECTION B — Code Mathematics & Multi-Branch Ledger Emergence 1. Mathematical Objects Formal Definitions Node (N) A labeled state derived from code execution, semantic interpretation, or focus projection. N = (id, type, parent, data, focus, timestamp) Enter fullscreen mode Exit fullscreen mode where: id ∈ UUID type ∈ NodeTypes parent ∈ N ∪ {∅} data: Input × Output × Metadata focus ∈ FocusSpace timestamp ∈ ℝ⁺ Edge (E) A transition between nodes caused by execution, interpretation, or focus shift. E = (source, target, condition, transform) Enter fullscreen mode Exit fullscreen mode where: source, target ∈ N condition: N → {true, false} transform: Input → Output Ledger (L) A totally ordered set of nodes with append-only constraints. L = {N₁, N₂, ..., Nₙ} Enter fullscreen mode Exit fullscreen mode where: ∀i < j: Nᵢ.timestamp ≤ Nⱼ.timestamp ∀N ∈ L: N is immutable L supports only append(N) operation Focus Operator (𝓕) Collapses superposition of possible views into a local perspective. 𝓕: L × FocusSpace → L' where L' ⊆ L 𝓕(L, f) = {N ∈ L | N.focus = f ∨ N.focus = 'global'} Enter fullscreen mode Exit fullscreen mode The focus operator acts as an observer , determining which nodes are "visible" from a given perspective. Multiple focuses can exist simultaneously over the same ledger without contradiction. Pattern Function (𝓟) Maps inputs to state transitions. 𝓟: Input × L → N × E Enter fullscreen mode Exit fullscreen mode Given input i and ledger L : 𝓟(i, L) = (n, e) where: n = new node derived from i and context of L e = edge connecting L.last to n Enter fullscreen mode Exit fullscreen mode Language Influence (𝓛) Captures how different programming languages alter execution patterns and binary outcomes. 𝓛: Code × Language → BinaryPattern Enter fullscreen mode Exit fullscreen mode For identical logic ℓ : 𝓛(ℓ, Python) ≠ 𝓛(ℓ, JavaScript) ≠ 𝓛(ℓ, C) Enter fullscreen mode Exit fullscreen mode Each produces distinct binary artifacts, which influence ledger structure. 2. CLI as a Mathematical Surface The CLI as a Projection Surface The command line interface is not merely a user interface—it is a mathematical surface where system state is projected and manipulated. CLI: SystemState → Projection Enter fullscreen mode Exit fullscreen mode Every command is a generator function that produces nodes and edges: $ mindseye scan repo/ → Generates: N_scan = ( id : uuid () , type : 'repo.scan' , ... ) E_scan = ( source : N_prev, target: N_scan, ... ) → Appends to ledger L → Returns projection of N_scan Enter fullscreen mode Exit fullscreen mode CLI as Ledger-Producing Machine Every CLI interaction follows this pattern: Command → Parse → Execute → Generate Node → Append Ledger → Shift Focus → Output Enter fullscreen mode Exit fullscreen mode class CLI { async execute ( command : string ): Promise < Output > { // 1. Parse command const parsed = this . parser . parse ( command ); // 2. Generate node const node : LedgerNode = { id : generateUUID (), type : `cli. ${ parsed . command } ` , parent : this . ledger . getCurrent ()?. id || null , children : [], timestamp : Date . now (), data : { input : parsed . args , output : null , // Populated after execution metadata : { command : command } }, focus : parsed . focus || ' global ' }; // 3. Execute try { const result = await this . executor . run ( parsed ); node . data . output = result ; // 4. Append to ledger this . ledger . append ( node ); // 5. Shift focus if needed if ( parsed . focus ) { this . context . setFocus ( parsed . focus ); } // 6. Return projection return this . project ( node ); } catch ( error ) { // Errors are branches, not failures const errorNode = { ... node , type : ` ${ node . type } .error` , data : { ... node . data , output : error } }; this . ledger . append ( errorNode ); return this . project ( errorNode ); } } } Enter fullscreen mode Exit fullscreen mode Every Output Has Focus $ mindseye query --focus = "main" → NODE: query.executed → LEDGER ENTRY CREATED: { id : "abc-123" , focus: "main" , ... } → FOCUS: main → OUTPUT: [ Filtered view of ledger where focus = "main" ] $ mindseye query --focus = "feature/auth" → NODE: query.executed → LEDGER ENTRY CREATED: { id : "def-456" , focus: "feature/auth" , ... } → FOCUS: feature/auth → OUTPUT: [ Filtered view of ledger where focus = "feature/auth" ] Enter fullscreen mode Exit fullscreen mode Same ledger, different focus, different output. Both are true. Errors as Branches $ mindseye analyze invalid-file.txt → NODE: analyze.started → NODE: analyze.error → LEDGER ENTRY CREATED → FOCUS SHIFTED TO: error-handling → NEW BRANCH: error-handling/invalid-file $ mindseye explore --branch = "error-handling/invalid-file" → View ledger from error branch perspective Enter fullscreen mode Exit fullscreen mode In traditional systems, errors terminate execution. In MindsEye, errors create valid alternative branches in the decision tree. 3. Patterned Binary & Language Effects Code Mathematics Traditional mathematics operates on numbers and abstract symbols. Code mathematics operates on executable patterns that produce binary artifacts. # Python: dynamic typing, interpreted, GIL def fibonacci ( n ): if n <= 1 : return n return fibonacci ( n - 1 ) + fibonacci ( n - 2 ) Enter fullscreen mode Exit fullscreen mode // JavaScript: event loop, JIT compilation, async function fibonacci ( n ) { if ( n <= 1 ) return n ; return fibonacci ( n - 1 ) + fibonacci ( n - 2 ); } Enter fullscreen mode Exit fullscreen mode // C: compiled, manual memory, hardware-close int fibonacci ( int n ) { if ( n <= 1 ) return n ; return fibonacci ( n - 1 ) + fibonacci ( n - 2 ); } Enter fullscreen mode Exit fullscreen mode Identical logic. Different languages. Different binary patterns: Python binary: [bytecode] → CPython VM → system calls JavaScript binary: [source] → V8 JIT → optimized machine code C binary: [source] → gcc → direct machine code Enter fullscreen mode Exit fullscreen mode Language Influence on Ledger Structure Each language produces different execution traces: const pythonTrace : LedgerNode [] = [ { type : ' interpret.start ' , data : { language : ' python ' }}, { type : ' function.call ' , data : { name : ' fibonacci ' , n : 5 }}, { type : ' recursion.depth ' , data : { level : 1 }}, { type : ' recursion.depth ' , data : { level : 2 }}, // ... deep recursion due to no tail-call optimization { type : ' interpret.complete ' , data : { result : 5 }} ]; const cTrace : LedgerNode [] = [ { type : ' compile.start ' , data : { language : ' c ' }}, { type : ' optimization.applied ' , data : { type : ' inline ' }}, { type : ' execute.native ' , data : { cycles : 127 }}, { type : ' execute.complete ' , data : { result : 5 }} ]; Enter fullscreen mode Exit fullscreen mode Same algorithm, different ledgers. The language is part of the pattern. 4. Semantic Branching Example Origin Sentence "The boy is on top of the tree and he might fall down." This sentence contains multiple embedded perspectives. Traditional analysis extracts a single "meaning." MindsEye extracts multiple coherent ledgers by shifting focus. Ledger A: Focus on the Boy ORIGIN: "The boy is on top of the tree and he might fall down." ↓ [focus: boy] NODE: subject.identified {entity: "boy"} ↓ NODE: state.located {location: "on tree"} ↓ NODE: state.elevated {height: "high"} ↓ NODE: risk.exposure {type: "potential fall"} ↓ NODE: concern.safety {subject: "boy"} Enter fullscreen mode Exit fullscreen mode Ledger A perspective: The boy is in a dangerous position and might get hurt. Ledger B: Focus on the Fall ORIGIN: "The boy is on top of the tree and he might fall down." ↓ [focus: fall] NODE: event.potential {type: "fall"} ↓ NODE: physics.gravity {direction: "downward"} ↓ NODE: force.impact {surface: "ground"} ↓ NODE: consequence.injury {severity: "possible"} ↓ NODE: prevention.required {action: "intervention"} Enter fullscreen mode Exit fullscreen mode Ledger B perspective: A fall event is possible and requires physics-based analysis and prevention. Ledger C: Focus on the Tree ORIGIN: "The boy is on top of the tree and he might fall down." ↓ [focus: tree] NODE: object.tree {type: "climbable"} ↓ NODE: structure.height {measurement: "tall"} ↓ NODE: usage.climbing {activity: "recreational"} ↓ NODE: property.stability {status: "supporting weight"} ↓ NODE: environment.context {setting: "outdoor"} Enter fullscreen mode Exit fullscreen mode Ledger C perspective: The tree is a structural object being used for climbing. Focus Creates Truth, Not Contradiction All three ledgers: Derive from the same origin sentence Contain different nodes Express different patterns Are simultaneously true There is no contradiction because each ledger represents a valid projection of the origin through a different focus operator: 𝓕(Origin, "boy") → Ledger A 𝓕(Origin, "fall") → Ledger B 𝓕(Origin, "tree") → Ledger C Enter fullscreen mode Exit fullscreen mode The origin remains constant. Focus determines which aspect becomes visible. 5. Multi-Branch System Architecture Repository Communication via CLI REPO_A REPO_B REPO_C │ │ │ │ $ mindseye emit │ │ → event.emitted │ │ │ $ mindseye listen │ │ → event.received │ │ → processing... │ │ $ mindseye emit │ │ │ $ mindseye listen │ │ │ → event.received │ │ │ → ledger.updated Enter fullscreen mode Exit fullscreen mode Repositories don't share databases. They emit and consume events via CLI , and each maintains its own ledger. Ledgers Emerge from Subsets LEDGER_GLOBAL = {N₁, N₂, N₃, N₄, N₅, N₆, N₇, N₈} 𝓕(LEDGER_GLOBAL, "python") → {N₁, N₃, N₅, N₇} = LEDGER_PYTHON 𝓕(LEDGER_GLOBAL, "docs") → {N₂, N₄, N₆, N₈} = LEDGER_DOCS 𝓕(LEDGER_PYTHON, "async") → {N₃, N₇} = LEDGER_PYTHON_ASYNC Enter fullscreen mode Exit fullscreen mode Ledgers are not isolated. They are projections and subsets of each other, depending on focus. 6. Closing Principle In traditional systems, meaning is stored as data. You retrieve it, and it is what it is. In MindsEye, meaning is not stored. Meaning is derived by applying focus to patterned state. Traditional: Meaning = Database[key] MindsEye: Meaning = 𝓕(Ledger, focus) Enter fullscreen mode Exit fullscreen mode The same ledger contains infinite potential meanings . Focus determines which meaning is observed. This is not relativism. This is perspective-aware truth : The ledger is objective (immutable, append-only) The focus is subjective (chosen by observer) The meaning is derived (computed from ledger + focus) All three aspects are required. Remove any one, and the system collapses. Meaning is not stored. Meaning is derived through focus across patterned state. SECTION C — Live Branching Data + Pattern Motion Simulating Portfolio Build as Living Ledger The Branching Universe Model Non-Linear Multi-Repo Development Traditional version control treats branches as linear paths that eventually merge back. MindsEye treats the entire development process as a directed acyclic graph (DAG) where: Any node can fork into multiple parallel realities Merges are first-class nodes, not just reconciliation events Errors create valid sub-ledgers, not termination states Focus filters the graph into coherent narratives Visual Comparison: Traditional branching: MindsEye branching: main n1 (origin) │ ╱│╲╲ ├─ feature ╱ │ ╲╲ │ └─ merge n2 n3 n4 n5 ├─ hotfix │╲ ╲│╱ ╱│ │ └─ merge │ ╲ n6 ╱ │ └─ ... │ n7 n8 │ ╲ │ ╱ │ ╲ │ ╱ n9(error) n10(merge) Simulation Context: Building This Portfolio We simulate the development of the MindsEye portfolio itself as a multi-repo ecosystem: REPO ECOSYSTEM: ├─ mindseye-docs (this document) ├─ mindseye-ledger-core (core engine) ├─ mindseye-dashboard (UI components) ├─ mindseye-cli (command interface) └─ mindscript-templates (prompt library) Each repo emits events. Events create nodes. Nodes form patterns. Patterns reveal meaning through focus. Canonical Event Schema Schema Definition typescriptinterface LedgerEvent { // Event identification event_id: string; // UUID v4 timestamp: string; // ISO 8601 event_type: EventType; // Event origin origin: { repo: string; // Repository name module: string; // Module/component within repo actor: 'human' | 'agent' | 'system'; tool: 'ai_studio' | 'gemini_cli' | 'builder' | 'runtime' | 'notion'; }; // Graph structure node: { node_id: string; // Node identifier label: string; // Human-readable label node_type: NodeType; parents: string[]; // Parent node IDs children: string[]; // Child node IDs focus_tags: string[]; // Focus identifiers }; // Transition information edge: { from: string; // Source node ID to: string; // Target node ID edge_type: EdgeType; reason: string; // Human-readable transition reason }; // Execution data payload: { input: Record; output: Record; metrics: Record; }; } type NodeType = | 'state' // System state change | 'prompt' // Prompt registration/execution | 'run' // Execution completion | 'artifact' // Generated output | 'decision' // Decision point | 'error' // Error state (valid branch) | 'merge'; // Merge node (multiple parents) type EdgeType = | 'transition' // Normal state transition | 'fork' // Parallel branch creation | 'merge' // Multiple paths converge | 'focus_shift' // Observer focus change | 'policy_gate'; // Policy-based transition type EventType = | 'REPO_SCAN_STARTED' | 'NODES_EXTRACTED' | 'PROMPT_REGISTERED' | 'RUN_STARTED' | 'RUN_COMPLETED' | 'FOCUS_SHIFT' | 'ARTIFACT_CREATED' | 'ERROR_ENCOUNTERED' | 'MERGE_INITIATED' | 'MERGE_COMPLETED' | 'POLICY_CHECK' | 'DECISION_MADE'; UI Component Mapping Schema Component → UI Component ──────────────────────────────────────────── event_id, timestamp → LedgerPanel (event stream) node. , edge. → GraphView (node/edge visualization) payload. , origin. → Inspector (detail view) focus_tags → FocusFilter (perspective selector) parents, children → LineageTracer (ancestry view) Synthetic Live Data Stream Full Event Sequence (40 Events) This JSONL represents the actual construction of the MindsEye portfolio, capturing 40 events across 4 focus branches with 2 merges and 3 error branches. Key Events (Summary): json{"event_id":"e1","timestamp":"2026-01-12T20:00:00.000Z","event_type":"REPO_SCAN_STARTED","origin":{"repo":"mindseye-docs","module":"scanner","actor":"agent","tool":"gemini_cli"},"node":{"node_id":"n1","label":"docs.scan.init","node_type":"state","parents":[],"children":["n2"],"focus_tags":["global","bootstrap"]},"edge":{"from":"n0","to":"n1","edge_type":"transition","reason":"initialize portfolio documentation"},"payload":{"input":{"path":"./docs"},"output":{},"metrics":{"files":0}}} {"event_id":"e5","timestamp":"2026-01-12T20:03:42.901Z","event_type":"RUN_COMPLETED","origin":{"repo":"mindseye-ledger-core","module":"engine","actor":"agent","tool":"builder"},"node":{"node_id":"n5","label":"run.section_generation.completed","node_type":"run","parents":["n4"],"children":["n6","n7","n8","n9"],"focus_tags":["global","execution"]},"edge":{"from":"n4","to":"n5","edge_type":"transition","reason":"generation completed successfully"},"payload":{"input":{"prompt_id":"p-sc-001"},"output":{"status":"ok","sections_generated":["C","D"]},"metrics":{"latency_ms":97774,"tokens":8947,"quality":0.91}}} Critical Fork Point (e5 → e6, e7, e8, e9): Node n5 (run completion) creates 4 parallel branches through focus shifts: n6: focus.schema_design → Schema branch n7: focus.data_generation → Data branch n8: focus.pattern_engine → Pattern branch n9: focus.communication → Communication branch Each branch proceeds independently, creates artifacts, and eventually merges back. Ledger Analysis Index Focus Branch Summary typescriptconst branchIndex = { branches: [ { focus: "schema", tags: ["schema", "structure", "typescript", "ui"], node_count: 6, nodes: ["n6", "n10", "n11", "n18", "n23", "n28"], origin: "n5", artifacts: ["LedgerEvent.ts", "ui_mappings.json", "SchemaModule"], status: "merged_to_dashboard" }, { focus: "data", tags: ["data", "simulation", "jsonl", "quality"], node_count: 7, nodes: ["n7", "n12", "n13", "n19", "n20", "n24", "n25"], origin: "n5", artifacts: ["portfolio_build.jsonl", "DataModule"], status: "merged_to_dashboard", errors: 1 }, { focus: "patterns", tags: ["patterns", "mplm", "library", "spec"], node_count: 5, nodes: ["n8", "n14", "n15", "n21", "n26"], origin: "n5", artifacts: ["patterns.json", "mplm_spec.md", "MPLMEngine"], status: "merged_to_core" }, { focus: "communication", tags: ["communication", "examples"], node_count: 5, nodes: ["n9", "n16", "n17", "n22", "n27"], origin: "n5", artifacts: ["comm_patterns.json", "interactive_examples", "CommLayer"], status: "merged_to_core" } ], total_nodes: 40, total_branches: 4, branch_depth_avg: 5.75 }; Merge Points typescriptconst mergeIndex = { merges: [ { merge_id: "n18", label: "merge.schema_artifacts", parents: ["n10", "n11"], parent_labels: ["artifact.event_schema.ts", "artifact.ui_mappings.json"], merge_strategy: "union", result: "Unified schema definition with UI bindings", conflicts: 0 }, { merge_id: "n28", label: "merge.dashboard_modules", parents: ["n23", "n24"], parent_labels: ["artifact.schema_module", "artifact.data_module"], merge_strategy: "layered", result: "Dashboard with integrated schema and data layers", conflicts: 1, resolution: "Resolved via interface abstraction" }, { merge_id: "n36", label: "merge.platform_complete", parents: ["n34", "n35"], parent_labels: ["merge.dashboard_complete", "artifact.cli_tool"], merge_strategy: "integration", result: "Complete MindsEye platform (UI + CLI)", conflicts: 0 } ], total_merges: 7, multi_parent_nodes: 7 }; Error Branches typescriptconst errorIndex = { errors: [ { error_id: "n13", label: "error.circular_reference", parent: "n7", origin_focus: "data", error_type: "validation", description: "Detected circular parent-child reference in generated graph", severity: "medium", resolution: { node: "n20", strategy: "remove_cycle", outcome: "n25 - validation passed" }, impact: "Delayed data module completion by 47 seconds", ledger_branch: "Valid alternative path showing error recovery" }, { error_id: "n29", label: "error.dependency_conflict", parent: "n25", origin_focus: "error", error_type: "build", description: "Dependency version conflict between React and TypeScript", severity: "low", resolution: { node: "n32", strategy: "pin_versions", outcome: "n32 - dependencies resolved" }, impact: "Required lockfile update", ledger_branch: "Shows dependency resolution as ledger pattern" } ], total_errors: 3, recovery_rate: 1.0, insight: "Errors create valid ledger branches that document recovery patterns" }; Graph Statistics typescriptconst graphStats = { topology: { total_nodes: 40, origin_nodes: 1, leaf_nodes: 1, merge_nodes: 7, error_nodes: 3, decision_nodes: 6, artifact_nodes: 19, state_nodes: 2, prompt_nodes: 1, run_nodes: 2 }, connectivity: { max_children: 4, max_parents: 2, avg_degree: 2.1, longest_path: 15, total_edges: 42 }, focuses: { unique_focuses: 4, global_nodes: 7, focused_nodes: 33, multi_focus_nodes: 0 }, timeline: { duration_seconds: 1294, avg_interval_seconds: 32.35, parallel_branches_max: 4 } }; SECTION D — Small Core Model + Focused Communication (MPLM) Multi-Pattern Ledger Model MPLM Specification Core Model Architecture MPLM is not a neural network with weights. It is a deterministic pattern-matching engine that operates on ledger state. typescriptinterface MPLM { // Input interface consume(input: MPLMInput): MPLMOutput; } interface MPLMInput { current_focus: string | null; // Active observer focus ledger_context: LedgerNode[]; // Recent nodes (window) query_intent: QueryIntent; // What user wants pattern_library: PatternLibrary; // Known transition rules context_window: number; // How far back to look } interface QueryIntent { type: 'trace' | 'analyze' | 'predict' | 'explain' | 'suggest'; target?: string; // Optional target node/focus depth?: number; // Traversal depth filters?: Record; // Additional constraints } interface MPLMOutput { next_actions: Action[]; // Edges to emit new_nodes: Partial[]; // Ledger entries to create focus_suggestions: FocusSuggestion[]; // Alternative coherent focuses confidence: ConfidenceScores; // Quality metrics explanation: string; // Human-readable rationale } Pattern Matching Logic typescriptclass MPLMEngine implements MPLM { private patterns: PatternLibrary; private ledger: Ledger; consume(input: MPLMInput): MPLMOutput { // 1. Apply focus filter to ledger context const focusedContext = this.applyFocus( input.ledger_context, input.current_focus ); // 2. Match patterns against focused context const matchedPatterns = this.matchPatterns( focusedContext, input.pattern_library, input.query_intent ); // 3. Evaluate pattern applicability const rankedPatterns = this.rankPatterns( matchedPatterns, input.query_intent, input.current_focus ); // 4. Generate actions from top patterns const actions = this.generateActions( rankedPatterns, focusedContext ); // 5. Propose new nodes const newNodes = this.proposeNodes( actions, focusedContext ); // 6. Suggest alternative focuses const focusSuggestions = this.suggestFocuses( input.ledger_context, input.current_focus, input.query_intent ); // 7. Calculate confidence scores const confidence = this.calculateConfidence( matchedPatterns, actions, focusedContext ); // 8. Generate explanation const explanation = this.explainReasoning( input.query_intent, rankedPatterns, actions, confidence ); return { next_actions: actions, new_nodes: newNodes, focus_suggestions: focusSuggestions, confidence, explanation }; Enter fullscreen mode Exit fullscreen mode } private applyFocus( nodes: LedgerNode[], focus: string | null ): LedgerNode[] { if (!focus) return nodes; // 𝓕(L, focus) - Focus operator from Section B return nodes.filter(node => node.focus_tags.includes(focus) || node.focus_tags.includes('global') ); Enter fullscreen mode Exit fullscreen mode } } Pattern Library Complete Pattern Definitions json{ "pattern_library": { "version": "1.0.0", "patterns": [ { "id": "p1", "name": "repo_scan_to_extraction", "description": "Repository scan automatically triggers node extraction", "when": { "event_type": "REPO_SCAN_STARTED", "conditions": [] }, "emit": ["NODES_EXTRACTED", "LEDGER_APPEND"], "node_type": "artifact", "focus_tags": ["structure", "global"], "gating": null, "confidence": 0.95 }, { "id": "p3", "name": "run_completion_focus_fork", "description": "Completed runs create multiple focus branches", "when": { "event_type": "RUN_COMPLETED", "conditions": [ {"field": "payload.output.status", "op": "==", "value": "ok"} ] }, "emit": ["FOCUS_SHIFT"], "node_type": "decision", "forks": ["schema", "data", "patterns", "communication"], "focus_tags": ["branch"], "gating": null, "confidence": 0.88 }, { "id": "p5", "name": "quality_gating", "description": "Artifacts undergo quality validation", "when": { "event_type": "ARTIFACT_CREATED", "conditions": [ {"field": "node.focus_tags", "op": "contains", "value": "data"} ] }, "emit": ["POLICY_CHECK"], "node_type": "decision", "focus_tags": ["quality"], "gating": { "type": "quality_threshold", "threshold": 0.85, "on_pass": "ARTIFACT_APPROVED", "on_fail": "ERROR_ENCOUNTERED" }, "confidence": 0.90 } ] } } Communication Patterns Neutral vs. Focused Communication Key insight: Without focus, patterns generate noise. With focus, patterns generate meaning. typescriptinterface CommunicationPattern { pattern_id: string; neutral_intent: string; // What it does without focus requires_focus: boolean; focus_effects: Record; // How each focus changes behavior } const communicationPatterns: CommunicationPattern[] = [ { pattern_id: "comm.trace.lineage", neutral_intent: "Trace complete lineage of all nodes", requires_focus: true, focus_effects: { "security": [ "Prioritize policy_gate edges", "Highlight authentication/authorization nodes", "Show risk assessment decisions", "Filter out non-security artifacts" ], "docs": [ "Prioritize documentation artifacts", "Show API endpoint nodes", "Highlight example generation", "Filter out implementation details" ], "performance": [ "Prioritize timing metrics", "Show execution latency nodes", "Highlight optimization decisions", "Filter out non-performance data" ] } } ]; Interactive Examples Example 1: Query with Focus = Security User Query: "Show me what's going on" Context: focus = "security" Step 1: Apply Focus Operator 𝓕 typescript// Original ledger (40 nodes) L_global = [n1, n2, n3, ..., n40] // Apply 𝓕(L_global, "security") L_security = 𝓕(L_global, "security") = [ n6, // focus.schema_design n10, // artifact.event_schema.ts n11, // artifact.ui_mappings.json n18, // merge.schema_artifacts n23 // artifact.schema_module ] // Security-focused nodes: 5 nodes User Sees: Security Analysis Summary Visible Nodes: 5 Focus Path: n6 → n10, n11 → n18 → n23 Key Findings: ✓ Type safety enforced via TypeScript interfaces ✓ Schema validation prevents injection attacks ✓ UI mappings follow secure binding patterns Risk Assessment: Low Recommendations: → Consider deeper validation pattern analysis (focus: validation) → Examine data flow security (focus: data) Example 2: Same Query with Focus = Docs User Query: "Show me what's going on" Context: focus = "docs" typescriptL_docs = 𝓕(L_global, "docs") = [ n9, // focus.communication n16, // artifact.comm_patterns n17, // artifact.interactive_examples n22, // merge.comm_artifacts n27, // artifact.comm_implementation n39 // artifact.documentation_published ] // Docs-focused nodes: 6 nodes User Sees: Documentation Coverage Report Visible Nodes: 6 Focus Path: n9 → n16, n17 → n22 → n27 → n39 Coverage Metrics: Sections documented: 4 (A, B, C, D) API coverage: 92% Interactive examples: 3 Total word count: 12,847 Status: Production-ready Recommendations: → Explore interactive examples in detail (focus: examples) → Validate API documentation completeness (focus: api) Comparative Analysis: Same Query, Three Truths The Quantum Nature of Focus The same user query—"Show me what's going on"—produced three completely different realities: typescriptconst query = "Show me what's going on"; 𝓕(L, "security") → 5 nodes, security audit, risk assessment 𝓕(L, "docs") → 6 nodes, coverage report, 92% documented 𝓕(L, "performance") → 4 nodes, timing profile, optimization paths All three answers are: Objectively true: Derived from the same immutable ledger Internally coherent: Each forms a complete narrative Simultaneously valid: No contradiction, only perspective Communication Requires Focus Without focus, MPLM would return all 40 nodes—an incomprehensible flood of information. With focus, MPLM returns a coherent sub-ledger that answers the specific question the observer cares about. Focus transforms noise into signal. Focus transforms data into meaning. Focus transforms ledgers into truth. Closing Principle In traditional systems, you ask a question and receive the answer—a single truth retrieved from storage. In MindsEye, you ask a question with a focus and receive a coherent truth—one of many valid projections of the underlying ledger. Traditional AI: Query → Database → Answer MindsEye: Query + Focus → 𝓕(Ledger) → Meaning The ledger is append-only, immutable, and objective. It contains all possible truths. Focus is the lens through which you observe. It determines which truth becomes visible. Meaning is not stored in nodes. Meaning emerges when focus is applied to pattern. SECTION E — GraphView + Focus UX (Instant Judge Understanding) Visualizing 10,000-Event Branching Ledgers Without Chaos E1. GraphView Goals What judges must understand in one screen: Auditability Through Visualization : Every decision, fork, and merge is visible and traceable. The graph proves intelligence is preserved, not overwritten. Focus Eliminates Chaos : Without focus, 10,000 nodes create visual noise. With focus, the graph shows only the coherent sub-ledger relevant to the observer's question. Progressive Disclosure Prevents Overload : The UI reveals complexity on demand—collapsed clusters expand, hidden edges appear, pinned nodes stay anchored—ensuring judges see structure, not spaghetti. E2. Layout Strategy for Massive Branching Macro to Micro Rendering Approach GraphView uses a two-phase rendering strategy: Phase 1: Macro (Cluster) Group nodes by focus and time windows into visual clusters. Render clusters as collapsed rectangles showing aggregate metrics. Phase 2: Micro (Neighborhood) When a cluster is expanded or a node is selected, render the local neighborhood (depth=2) with full detail. interface RenderPhase { macro : { clusters : Cluster []; // Focus-grouped node sets aggregates : ClusterMetrics ; // Node count, time span, focus layout : ' swimlane ' ; // Horizontal lanes per focus }; micro : { neighborhood : LedgerNode []; // Selected node ± 2 hops edges : Edge []; // Only edges within neighborhood layout : ' hierarchical ' ; // Topological sort, parent above child }; } Enter fullscreen mode Exit fullscreen mode Lane-Based DAG Layout The graph uses a 2D coordinate system : X-axis: Time / Topological Order (left = earlier, right = later) Y-axis: Focus Lanes (each focus gets a horizontal lane) Enter fullscreen mode Exit fullscreen mode ASCII Diagram: Lanes + Merge Junction TIME → Lane: SECURITY [n10]────────►[n23]────┐ │ ├──►[n28 MERGE] │ Lane: DATA [n12]──►[n19]──►[n24]─┘ ↓ │ [n34 MERGE] │ Lane: PATTERNS [n14]──────────►[n26]───────┘ │ └──►[n21 MERGE]──►[n30] Lane: GLOBAL [n1]──►[n2]──►[n5] (origin nodes) Key: [nX] = Node ────► = Normal edge (transition) ───┐ ├──► = Merge edge (multiple parents) [nX MERGE] = Merge node (2+ parents) Enter fullscreen mode Exit fullscreen mode Layout Rules: interface LayoutRules { xPosition : ( node : LedgerNode ) => number { // Topological sort: parents always left of children return node . topologicalOrder * UNIT_WIDTH ; }; yPosition : ( node : LedgerNode ) => number { // Assign lane based on primary focus tag const lane = this . getLaneForFocus ( node . focus_tags [ 0 ]); return lane . index * LANE_HEIGHT ; }; mergeNodePosition : ( node : LedgerNode ) => { x : number , y : number } { // Merge nodes positioned between parent lanes const parentLanes = [ node . parents . map ]( http : //node.parents.map)(p => this.getLane(p)); const avgY = average ([ parentLanes . map ]( http : //parentLanes.map)(l => l.yPosition)); const maxX = max ([ node . parents . map ]( http : //node.parents.map)(p => p.xPosition)); return { x : maxX + MERGE_OFFSET , y : avgY }; }; } Enter fullscreen mode Exit fullscreen mode Progressive Disclosure Rules 1. Stack Collapsing When multiple nodes share the same focus and timestamp window, collapse them into a stack. function shouldCollapse ( nodes : LedgerNode []): boolean { const timeWindow = 60 _000 ; // 60 seconds const sameFocus = new Set ([ nodes . map ]( http : //nodes.map)(n => n.focus_tags[0])).size === 1; const sameWindow = max ([ nodes . map ]( http : //nodes.map)(n => n.timestamp)) - min ([ nodes . map ]( http : //nodes.map)(n => n.timestamp)) < timeWindow; return sameFocus && sameWindow && nodes . length > 3 ; } interface CollapsedStack { label : string ; // "4 artifacts" nodeCount : number ; // 4 focusTags : string []; // ["data", "quality"] timeRange : [ Date , Date ]; expanded : boolean ; // Click to expand } Enter fullscreen mode Exit fullscreen mode 2. Edge Disclosure Don't draw all edges at once. Show edges progressively: type EdgeVisibility = | ' always ' // Direct parent-child (1 hop) | ' on-hover ' // Indirect (2-3 hops) | ' on-expand ' ; // Cross-focus (different lanes) function getEdgeVisibility ( edge : Edge , selectedNode : string | null ): EdgeVisibility { if ( edge . from === selectedNode || [ edge . to ]( http : //edge.to) === selectedNode) { return ' always ' ; } const hopDistance = calculateHops ( edge , selectedNode ); if ( hopDistance <= 1 ) return ' always ' ; if ( hopDistance <= 3 ) return ' on-hover ' ; const crossFocus = this . getLane ( edge . from ) !== this . getLane ([ edge . to ]( http : //edge.to)); return crossFocus ? ' on-expand ' : ' on-hover ' ; } Enter fullscreen mode Exit fullscreen mode 3. Pinned Anchors Allow users to pin important nodes that stay visible during panning/zooming. interface PinnedNode { nodeId : string ; label : string ; reason : ' origin ' | ' merge ' | ' error ' | ' user-pinned ' ; position : ' fixed ' ; // Remains in viewport } // Auto-pin certain node types function shouldAutoPin ( node : LedgerNode ): boolean { return ( node . parents . length === 0 || // Origin node . parents . length >= 2 || // Merge node . node_type === ' error ' || // Error branch node . focus_tags . includes ( ' complete ' ) // Terminal node ); } Enter fullscreen mode Exit fullscreen mode Render Budget Policy Limit visible nodes to maintain 60fps performance. interface RenderBudget { maxVisibleNodes : number ; // 500 nodes max maxVisibleEdges : number ; // 1000 edges max expansionBehavior : ' lazy ' ; // Expand on demand cullStrategy : ' frustum ' ; // Only render viewport + margin } class RenderBudgetManager { private budget : RenderBudget = { maxVisibleNodes : 500 , maxVisibleEdges : 1000 , expansionBehavior : ' lazy ' , cullStrategy : ' frustum ' }; enforceNodeLimit ( nodes : LedgerNode []): LedgerNode [] { if ( nodes . length <= this . budget . maxVisibleNodes ) { return nodes ; } // Priority order: // 1. Selected node + neighborhood // 2. Pinned nodes // 3. Nodes in viewport // 4. Recent nodes (by timestamp) const selected = this . getSelectedNeighborhood (); const pinned = this . getPinnedNodes (); const inViewport = this . getNodesInViewport (); let visible = [... selected , ... pinned , ... inViewport ]; visible = dedup ( visible ); if ( visible . length < this . budget . maxVisibleNodes ) { const remaining = this . budget . maxVisibleNodes - visible . length ; const recent = this . getRecentNodes ( remaining ); visible . push (... recent ); } return visible . slice ( 0 , this . budget . maxVisibleNodes ); } } Enter fullscreen mode Exit fullscreen mode Data Selection Function Pseudocode for choosing what to draw: function selectNodesToRender ( ledger : Ledger , focus : string | null , viewport : Viewport , selectedNode : string | null ): RenderableGraph { // Step 1: Apply focus filter (𝓕 operator) let nodes = focus ? ledger . nodes . filter ( n => n . focus_tags . includes ( focus ) || n . focus_tags . includes ( ' global ' ) ) : ledger . nodes ; // Step 2: Cull nodes outside viewport (with margin) const margin = 200 ; // pixels nodes = nodes . filter ( n => isInBounds ( n . position , viewport , margin ) ); // Step 3: Expand selected node neighborhood if ( selectedNode ) { const neighborhood = getNeighborhood ( selectedNode , depth : 2 ); nodes = union ( nodes , neighborhood ); } // Step 4: Include pinned nodes const pinned = getPinnedNodes (); nodes = union ( nodes , pinned ); // Step 5: Apply render budget nodes = budgetManager . enforceNodeLimit ( nodes ); // Step 6: Collapse stacks const stacks = identifyStacksToCollapse ( nodes ); const collapsed = collapseIntoStacks ( nodes , stacks ); // Step 7: Select edges const edges = selectEdges ( collapsed , viewport ); return { nodes : collapsed , edges , stacks }; } Enter fullscreen mode Exit fullscreen mode Complexity Note: Why This Stays Fast O(n) filtering, O(log n) spatial queries, O(1) rendering: // Time complexity analysis for 10,000 nodes: // Focus filter: O(n) // - Single pass through nodes: ~10ms for 10k nodes // Spatial culling: O(log n) with R-tree // - R-tree query for viewport: ~0.1ms // - Returns ~500 visible nodes // Neighborhood expansion: O(k) where k = neighborhood si | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions Sushant Rahate Web engineer, ❤️ JavaScript. Location India Joined Joined on Oct 3, 2018 Email address sushantrahate15@gmail.com Personal website https://sushantrahate.com/ github website Education Bachelor of Computer Science Pronouns He/Him Seven Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least seven years. Got it Close Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close Six Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least six years. 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Got it Close More info about @sushantrahate GitHub Repositories secure-nodejs-backend Focused on building secure and reliable Node.js applications JavaScript hls-video-streaming-nodejs-ffmpeg This project demonstrates how to upload a video, convert it into HLS streaming segments using FFmpeg, and play the video using HLS.js. The project is built with Node.js, Express, and FFmpeg. JavaScript express-typescript-prisma-postgresql For building RESTful APIs using Express, TypeScript, Prisma, and PostgreSQL. TypeScript • 2 stars docsify-darkly-theme Dark theme for Docsify CSS • 13 stars docker-mean-stack-nginx MEAN Stack example with Docker Compose and NGINX Reverse Proxy HTML • 2 stars jsr-unified-response A JSR package for creating a unified response structure for backend APIs. 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Post 3 posts published Comment 9 comments written Tag 6 tags followed Pin Pinned Node.js Authentication: Best Practices and Key Strategies Sushant Rahate Sushant Rahate Sushant Rahate Follow Nov 11 '24 Node.js Authentication: Best Practices and Key Strategies # javascript # authentication # node # security 40 reactions Comments 6 comments 6 min read Role-Based Access Control (RBAC) with Feature-Centric Approach Sushant Rahate Sushant Rahate Sushant Rahate Follow Nov 9 '24 Role-Based Access Control (RBAC) with Feature-Centric Approach # javascript # rbac # tutorial # security 3 reactions Comments Add Comment 3 min read I Built a 100/100 Google Lighthouse Portfolio website - By Keeping It Boring Sushant Rahate Sushant Rahate Sushant Rahate Follow Dec 28 '25 I Built a 100/100 Google Lighthouse Portfolio website - By Keeping It Boring # showdev # webdev # performance # portfolio Comments Add Comment 3 min read Want to connect with Sushant Rahate? 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Report Abuse Atsushi Suzuki Posted on Jan 13 CKA (Certified Kubernetes Administrator) Exam Report 2026: Don’t Rely on Old Guides (Mastering the Post-2025 Revision) # kubernetes # certification # devops # learning Despite being active as an AWS Community Builder (Containers) and a Docker Captain, for some reason, I had never really touched Kubernetes before. So, starting in November 2025, I began studying for 1-2 hours on weekdays outside of work. I am the type of person who finds it easier to solidify foundational knowledge when I have a specific goal like a certification, so I decided to aim for the Certified Kubernetes Administrator (CKA) first. Certified Kubernetes Administrator (CKA) Why I am writing this article If you search for "CKA Pass" you will find many experience reports. However, there are still not many articles written after the exam scope revision in February 2025. Having actually taken the exam, I felt that the "sense of difficulty" and "essential techniques" mentioned in older reports are no longer entirely applicable. I wrote this article as a reference for those who are planning to take the exam in the future. Exam Results I passed with a score of 72% (passing score is 66%). It was my first time taking a hands-on practical exam, and compared to multiple-choice exams, I felt constantly rushed—I couldn't stop sweating. I didn't finish everything within the time limit and didn't have time to go back to the troubleshooting questions I had flagged. Exam Date: 2026/01/11 13:30~ Location: Private room in a co-working space Kubernetes Version: v1.34 Device: MacBook Air (2022, M2, 13.6-inch) Impressions of the New Exam Scope (Post-Feb 2025) and Difficulty To be honest, I felt it was significantly more difficult than the image I had from older experience reports. My personal impression was that it felt about as challenging as the "Killer Shell" simulator (mentioned later). Below is the revised exam scope, and I felt that questions related to the newly added content made up about half of the exam. CKA Program Changes - Feb 2025 While I cannot provide specific details about the questions, you will likely struggle if your understanding of the following newly added topics is weak: Helm Kustomize Gateway API (Gateway, HttpRoute, etc.) Network Policy CRDs (Custom Resource Definitions) Extension interfaces (CNI, CSI, CRI, etc.) Learning Resources Used I used Udemy, KodeKloud, and Killer Shell. Many reports from before the revision said that Udemy and Killer Shell were enough, but my personal feeling is that I was only able to put up a fight because I went as far as doing the additional labs on KodeKloud. Udemy This is the standard Udemy course recommended in almost every report. I bought it during one of their frequent sales. Certified Kubernetes Administrator (CKA) Practice Exam Tests The course consists of video lectures and practice tests (hosted on a separate service called KodeKloud). Since my Kubernetes knowledge was literally zero, I studied each component through the videos before attempting the practice tests. I went through the lectures once and repeated the practice questions I didn't understand multiple times (up to 4 times). For my weak areas (Helm, Kustomize, Gateway API, CRD), I re-watched the lectures several times. Once I could solve over 80% of the practice questions, I tackled the three Mock Exams in the final section until I could solve them perfectly (up to 4 rounds for some). For explanations I didn't quite understand, I asked AI for help. KodeKloud This is the KodeKloud platform included with the Udemy course: Certified Kubernetes Administrator (CKA) Since having only three Mock Exams felt a bit uncertain, I paid for the following course to solve five additional Mock Exams: Ultimate Certified Kubernetes Administrator (CKA) Mock Exam Series Killer Shell When you register for the exam, you get two sessions of the "Killer Shell" exam simulator. It uses the same Remote Desktop environment as the actual exam, so you should absolutely use it to get used to the interface. In my case, since I took the exam on a MacBook, the shortcut keys for commands change in the Remote Desktop, so I was able to practice copy-pasting in the simulator. Note that the simulator access is provided twice, and each session expires after 36 hours. If you want to review after it expires, it’s better to save the answer pages as PDF or HTML. Killer Shell Tips No need to add settings to .bashrc Common tips in older reports, such as "aliases for switching namespaces," are no longer necessary. This is because the current exam format involves using ssh to switch between different environments for each task. Memorize the Documentation URL The browser doesn't automatically open to the documentation page when the exam starts, so make sure you can quickly navigate to https://kubernetes.io/docs . Learn Copy-Paste Shortcuts for Remote Desktop Whether or not you can copy-paste quickly can make or break your pass/fail result. Practice the operations on Killer Shell. Copy (Terminal): Ctrl + Shift + C Paste (Terminal): Ctrl + Shift + V Prepare for Applied Questions Don't just memorize each component; imagine how they combine with others. Simply "memorizing Helm commands" might not be enough for some of the harder questions. Helm + CRD Migration from Ingress → Gateway + HttpRoute, etc. Exam Environment The conditions for the exam environment are strict: "a private space without noise," "no objects on the desk," etc. Unfortunately, I didn't have such an environment at home, so I rented a private room in a co-working space. Interaction with the proctor is via chat, so there is no verbal conversation. However, it seems that even slight noise will be pointed out, so choosing a private room is the safe bet. Instructions from the proctor come in your native language (Japanese in my case), but they seem to be using machine translation, as some instructions were a bit confusing. I assumed the proctor was non-Japanese, so I replied in English (just basic things like "OK," "thanks," etc.). Following the proctor's instructions, I used the webcam to show the room (ceiling, floor, desk, walls), both ears, both wrists, and my powered-off smartphone. It took about 15 minutes to actually start the exam. Also, I didn't use the external monitor at the co-working space, but in retrospect, having a larger workspace would have made things easier, so I probably should have used it. During the exam, I didn't really feel the presence of the proctor, but when I was stuck on a problem and touched my chin, a chat message arrived saying, "Please refrain from gestures that cover your face." Final Thoughts Obtaining the CKA was quite a challenge, but I plan to take the CKAD while I still have this momentum. The second half of 2025 was quite rough at my company and I felt zero personal growth, so I want to make up for that in 2026. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Atsushi Suzuki Follow AWS Community Builder | 15x AWS Certified | Docker Captain Hooked on the TV drama Silicon Valley, I switched from sales to engineering. Developing SaaS and researching AI at a startup in Tokyo. Location Tokyo Joined Mar 11, 2021 More from Atsushi Suzuki I Automated My Air Conditioner with Kubernetes (kind + CronJob + SwitchBot) # kubernetes # containers # iot # docker Practical Terraform Tips for Secure and Reliable AWS Environments # aws # terraform # devops # beginners Fixing the “Invalid Parameter” Error When Registering an SNS Topic for SES Feedback Notifications # aws # security # devops # cloud 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Performance Follow Hide Tag for content related to software performance. Create Post submission guidelines Articles should be obviously related to software performance in some way. Possible topics include, but are not limited to: Performance Testing Performance Analysis Optimising for performance Scalability Resilience But most of all, be kind and humble. 💜 Older #performance posts 4 5 6 7 8 9 10 11 12 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Building a "No-Lag" 2D Multiplayer Game (Clueland) with Next.js, Express, and WebSockets Govind Mishra Govind Mishra Govind Mishra Follow Dec 28 '25 Building a "No-Lag" 2D Multiplayer Game (Clueland) with Next.js, Express, and WebSockets # nextjs # gamedev # performance # node Comments Add Comment 1 min read I Built a 100/100 Google Lighthouse Portfolio website - By Keeping It Boring Sushant Rahate Sushant Rahate Sushant Rahate Follow Dec 28 '25 I Built a 100/100 Google Lighthouse Portfolio website - By Keeping It Boring # showdev # webdev # performance # portfolio Comments Add Comment 3 min read Eclipse Collections vs JDK Collections: A Performance Deep Dive özkan pakdil özkan pakdil özkan pakdil Follow Dec 30 '25 Eclipse Collections vs JDK Collections: A Performance Deep Dive # algorithms # java # performance Comments Add Comment 3 min read The 5-Second Boot: Building a Minimalist "Browser OS" for 1GB RAM Machines techno kraft techno kraft techno kraft Follow Jan 1 The 5-Second Boot: Building a Minimalist "Browser OS" for 1GB RAM Machines # discuss # performance # challenge # archlinux 1 reaction Comments Add Comment 2 min read lwlog 1.5.0 Release Christian Panov Christian Panov Christian Panov Follow Dec 29 '25 lwlog 1.5.0 Release # showdev # tooling # opensource # performance Comments Add Comment 2 min read 🚀 Otimize a Performance da Sua Aplicação com Lazy Loading! Nathana Facion Nathana Facion Nathana Facion Follow Dec 27 '25 🚀 Otimize a Performance da Sua Aplicação com Lazy Loading! # frontend # performance # ux Comments Add Comment 1 min read Optimizing Complex Planning and Scheduling with Timefold Richa Singh Richa Singh Richa Singh Follow Dec 29 '25 Optimizing Complex Planning and Scheduling with Timefold # algorithms # tooling # ai # performance Comments Add Comment 4 min read I Replaced Redis with PostgreSQL (And It's Faster) Polliog Polliog Polliog Follow Jan 9 I Replaced Redis with PostgreSQL (And It's Faster) # postgres # redis # database # performance 51 reactions Comments 8 comments 9 min read When an AI Suggests Deprecated Pandas APIs Olivia Perell Olivia Perell Olivia Perell Follow Dec 31 '25 When an AI Suggests Deprecated Pandas APIs # performance # ai # python # api Comments Add Comment 3 min read Project Corsa: The Untold Story of TypeScript 7 (A Git Forensic Thriller) Mr. 0x1 Mr. 0x1 Mr. 0x1 Follow Dec 27 '25 Project Corsa: The Untold Story of TypeScript 7 (A Git Forensic Thriller) # typescript # go # webdev # performance Comments Add Comment 5 min read Goodbye Hashnode, Hello Vercel: Migrating My Blog to Next.js and Vercel Dany Paredes Dany Paredes Dany Paredes Follow Jan 11 Goodbye Hashnode, Hello Vercel: Migrating My Blog to Next.js and Vercel # nextjs # performance # tutorial # webdev Comments Add Comment 4 min read Supercharge Your React Page Speed: How @opensite/hooks Reduces Bundle Size and API Calls by 95% Jordan Hudgens Jordan Hudgens Jordan Hudgens Follow Dec 28 '25 Supercharge Your React Page Speed: How @opensite/hooks Reduces Bundle Size and API Calls by 95% # react # performance # webdev # javascript Comments Add Comment 8 min read 🚀 From “Works Fine” to “Feels Instant”: Tuning a GoFr API Like Engineers, Not Magicians Umang Mundhra Umang Mundhra Umang Mundhra Follow Dec 26 '25 🚀 From “Works Fine” to “Feels Instant”: Tuning a GoFr API Like Engineers, Not Magicians # database # go # performance # api Comments Add Comment 3 min read Understanding the useEffect Dependency Array Usama Usama Usama Follow Dec 26 '25 Understanding the useEffect Dependency Array # performance # react # frontend # ui 1 reaction Comments 1 comment 3 min read Wearable Data Performance: How to Build Fluid Health Dashboards wellallyTech wellallyTech wellallyTech Follow Dec 26 '25 Wearable Data Performance: How to Build Fluid Health Dashboards # react # performance # javascript # healthtech Comments Add Comment 2 min read How I Improved RAG Accuracy from 73% to 100% - A Chunking Strategy Comparison Yu-Chen, Lin Yu-Chen, Lin Yu-Chen, Lin Follow Dec 30 '25 How I Improved RAG Accuracy from 73% to 100% - A Chunking Strategy Comparison # rag # llm # performance # ai Comments Add Comment 7 min read Amazon CloudFront Demystified: The Complete Architect-Level Guide Manish Kumar Manish Kumar Manish Kumar Follow Dec 26 '25 Amazon CloudFront Demystified: The Complete Architect-Level Guide # architecture # aws # performance # networking Comments Add Comment 51 min read What Is IoT Edge Analytics and Why It Matters for Industrial Real-Time Decisions Rushikesh Langale Rushikesh Langale Rushikesh Langale Follow Dec 26 '25 What Is IoT Edge Analytics and Why It Matters for Industrial Real-Time Decisions # analytics # architecture # iot # performance Comments Add Comment 2 min read Coding Challenge Practice - Question 87 Bukunmi Odugbesan Bukunmi Odugbesan Bukunmi Odugbesan Follow Dec 27 '25 Coding Challenge Practice - Question 87 # challenge # javascript # performance Comments Add Comment 1 min read TOON vs JSON en RAG (Java): el Grinch de los formatos cuando cada token cuenta 🎁 Aylen Tejas Aylen Tejas Aylen Tejas Follow Dec 25 '25 TOON vs JSON en RAG (Java): el Grinch de los formatos cuando cada token cuenta 🎁 # java # rag # llm # performance Comments Add Comment 7 min read Computekit — Reusable heavy computations for JS & React Ghassen Ben Hadj Lassoued Ghassen Ben Hadj Lassoued Ghassen Ben Hadj Lassoued Follow Dec 28 '25 Computekit — Reusable heavy computations for JS & React # react # webassembly # performance # typescript 2 reactions Comments Add Comment 1 min read How I Optimized FFmpeg Filters with Slice Threading (My First Contribution) Raja Rathour Raja Rathour Raja Rathour Follow Dec 25 '25 How I Optimized FFmpeg Filters with Slice Threading (My First Contribution) # c # opensource # ffmpeg # performance 1 reaction Comments Add Comment 3 min read How Rate Limiting Saved Me $500 in One Day (Real Story) Alejandro Alejandro Alejandro Follow Dec 29 '25 How Rate Limiting Saved Me $500 in One Day (Real Story) # cloudflarechallenge # security # webdev # performance Comments Add Comment 2 min read I built an app in every frontend framework Alicia Sykes Alicia Sykes Alicia Sykes Follow Jan 5 I built an app in every frontend framework # performance # webdev # javascript # frontend 181 reactions Comments 43 comments 13 min read CDN vs. No CDN: Which Works Best for High-Traffic WordPress Sites? Nikita Heroxhost Nikita Heroxhost Nikita Heroxhost Follow Dec 26 '25 CDN vs. No CDN: Which Works Best for High-Traffic WordPress Sites? # architecture # performance # wordpress # networking Comments Add Comment 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. 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https://dev.to/suzuki0430/cka-certified-kubernetes-administrator-exam-report-2026-dont-rely-on-old-guides-mastering-the-534m#killer-shell | CKA (Certified Kubernetes Administrator) Exam Report 2026: Don’t Rely on Old Guides (Mastering the Post-2025 Revision) - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. 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Report Abuse Atsushi Suzuki Posted on Jan 13 CKA (Certified Kubernetes Administrator) Exam Report 2026: Don’t Rely on Old Guides (Mastering the Post-2025 Revision) # kubernetes # certification # devops # learning Despite being active as an AWS Community Builder (Containers) and a Docker Captain, for some reason, I had never really touched Kubernetes before. So, starting in November 2025, I began studying for 1-2 hours on weekdays outside of work. I am the type of person who finds it easier to solidify foundational knowledge when I have a specific goal like a certification, so I decided to aim for the Certified Kubernetes Administrator (CKA) first. Certified Kubernetes Administrator (CKA) Why I am writing this article If you search for "CKA Pass" you will find many experience reports. However, there are still not many articles written after the exam scope revision in February 2025. Having actually taken the exam, I felt that the "sense of difficulty" and "essential techniques" mentioned in older reports are no longer entirely applicable. I wrote this article as a reference for those who are planning to take the exam in the future. Exam Results I passed with a score of 72% (passing score is 66%). It was my first time taking a hands-on practical exam, and compared to multiple-choice exams, I felt constantly rushed—I couldn't stop sweating. I didn't finish everything within the time limit and didn't have time to go back to the troubleshooting questions I had flagged. Exam Date: 2026/01/11 13:30~ Location: Private room in a co-working space Kubernetes Version: v1.34 Device: MacBook Air (2022, M2, 13.6-inch) Impressions of the New Exam Scope (Post-Feb 2025) and Difficulty To be honest, I felt it was significantly more difficult than the image I had from older experience reports. My personal impression was that it felt about as challenging as the "Killer Shell" simulator (mentioned later). Below is the revised exam scope, and I felt that questions related to the newly added content made up about half of the exam. CKA Program Changes - Feb 2025 While I cannot provide specific details about the questions, you will likely struggle if your understanding of the following newly added topics is weak: Helm Kustomize Gateway API (Gateway, HttpRoute, etc.) Network Policy CRDs (Custom Resource Definitions) Extension interfaces (CNI, CSI, CRI, etc.) Learning Resources Used I used Udemy, KodeKloud, and Killer Shell. Many reports from before the revision said that Udemy and Killer Shell were enough, but my personal feeling is that I was only able to put up a fight because I went as far as doing the additional labs on KodeKloud. Udemy This is the standard Udemy course recommended in almost every report. I bought it during one of their frequent sales. Certified Kubernetes Administrator (CKA) Practice Exam Tests The course consists of video lectures and practice tests (hosted on a separate service called KodeKloud). Since my Kubernetes knowledge was literally zero, I studied each component through the videos before attempting the practice tests. I went through the lectures once and repeated the practice questions I didn't understand multiple times (up to 4 times). For my weak areas (Helm, Kustomize, Gateway API, CRD), I re-watched the lectures several times. Once I could solve over 80% of the practice questions, I tackled the three Mock Exams in the final section until I could solve them perfectly (up to 4 rounds for some). For explanations I didn't quite understand, I asked AI for help. KodeKloud This is the KodeKloud platform included with the Udemy course: Certified Kubernetes Administrator (CKA) Since having only three Mock Exams felt a bit uncertain, I paid for the following course to solve five additional Mock Exams: Ultimate Certified Kubernetes Administrator (CKA) Mock Exam Series Killer Shell When you register for the exam, you get two sessions of the "Killer Shell" exam simulator. It uses the same Remote Desktop environment as the actual exam, so you should absolutely use it to get used to the interface. In my case, since I took the exam on a MacBook, the shortcut keys for commands change in the Remote Desktop, so I was able to practice copy-pasting in the simulator. Note that the simulator access is provided twice, and each session expires after 36 hours. If you want to review after it expires, it’s better to save the answer pages as PDF or HTML. Killer Shell Tips No need to add settings to .bashrc Common tips in older reports, such as "aliases for switching namespaces," are no longer necessary. This is because the current exam format involves using ssh to switch between different environments for each task. Memorize the Documentation URL The browser doesn't automatically open to the documentation page when the exam starts, so make sure you can quickly navigate to https://kubernetes.io/docs . Learn Copy-Paste Shortcuts for Remote Desktop Whether or not you can copy-paste quickly can make or break your pass/fail result. Practice the operations on Killer Shell. Copy (Terminal): Ctrl + Shift + C Paste (Terminal): Ctrl + Shift + V Prepare for Applied Questions Don't just memorize each component; imagine how they combine with others. Simply "memorizing Helm commands" might not be enough for some of the harder questions. Helm + CRD Migration from Ingress → Gateway + HttpRoute, etc. Exam Environment The conditions for the exam environment are strict: "a private space without noise," "no objects on the desk," etc. Unfortunately, I didn't have such an environment at home, so I rented a private room in a co-working space. Interaction with the proctor is via chat, so there is no verbal conversation. However, it seems that even slight noise will be pointed out, so choosing a private room is the safe bet. Instructions from the proctor come in your native language (Japanese in my case), but they seem to be using machine translation, as some instructions were a bit confusing. I assumed the proctor was non-Japanese, so I replied in English (just basic things like "OK," "thanks," etc.). Following the proctor's instructions, I used the webcam to show the room (ceiling, floor, desk, walls), both ears, both wrists, and my powered-off smartphone. It took about 15 minutes to actually start the exam. Also, I didn't use the external monitor at the co-working space, but in retrospect, having a larger workspace would have made things easier, so I probably should have used it. During the exam, I didn't really feel the presence of the proctor, but when I was stuck on a problem and touched my chin, a chat message arrived saying, "Please refrain from gestures that cover your face." Final Thoughts Obtaining the CKA was quite a challenge, but I plan to take the CKAD while I still have this momentum. The second half of 2025 was quite rough at my company and I felt zero personal growth, so I want to make up for that in 2026. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Atsushi Suzuki Follow AWS Community Builder | 15x AWS Certified | Docker Captain Hooked on the TV drama Silicon Valley, I switched from sales to engineering. Developing SaaS and researching AI at a startup in Tokyo. Location Tokyo Joined Mar 11, 2021 More from Atsushi Suzuki I Automated My Air Conditioner with Kubernetes (kind + CronJob + SwitchBot) # kubernetes # containers # iot # docker Practical Terraform Tips for Secure and Reliable AWS Environments # aws # terraform # devops # beginners Fixing the “Invalid Parameter” Error When Registering an SNS Topic for SES Feedback Notifications # aws # security # devops # cloud 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/koshirok096 | koshirok096 - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions koshirok096 College Student / Frontend Developer / Web Designer / Photographer Location Vancouver, Canada Joined Joined on May 24, 2021 github website Four Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least four years. Got it Close Three Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least three years. Got it Close Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close 16 Week Writing Streak You are a writing star! You've written at least one post per week for 16 straight weeks. Congratulations! 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Testing Follow Hide Find those bugs before your users do! 🐛 Create Post Older #testing posts 6 7 8 9 10 11 12 13 14 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Maestro: A Single Framework for Mobile and Web E2E Testing Dennis Whalen Dennis Whalen Dennis Whalen Follow for Leading EDJE Dec 26 '25 Maestro: A Single Framework for Mobile and Web E2E Testing # webdev # testing # mobile # qa Comments 2 comments 5 min read Write a JWT Login Test Using Cypress حذيفة حذيفة حذيفة Follow Dec 13 '25 Write a JWT Login Test Using Cypress # cypress # react # jwt # testing 2 reactions Comments Add Comment 3 min read Eclipse WTP: JaCoCo Coverage Not Recognized When Running Tomcat in Debug Mode toydev toydev toydev Follow Dec 12 '25 Eclipse WTP: JaCoCo Coverage Not Recognized When Running Tomcat in Debug Mode # java # eclipse # jacoco # testing Comments Add Comment 3 min read How Verdex Sees Inside Iframes: Event-Driven Multi-Frame Support Johnny Johnny Johnny Follow Dec 12 '25 How Verdex Sees Inside Iframes: Event-Driven Multi-Frame Support # tooling # testing # javascript # architecture Comments Add Comment 12 min read Quic-test: an open tool for testing QUIC, BBRv3, and FEC under real-world network conditions Maksim Lanies Maksim Lanies Maksim Lanies Follow for Cloudbridge Research Dec 11 '25 Quic-test: an open tool for testing QUIC, BBRv3, and FEC under real-world network conditions # tooling # testing # opensource # networking Comments Add Comment 5 min read Django + DRF Practical Testing: Blog, Writer, Category, SocialMediaMeta (Full Use Case) - Part 2 Ajit Kumar Ajit Kumar Ajit Kumar Follow Dec 12 '25 Django + DRF Practical Testing: Blog, Writer, Category, SocialMediaMeta (Full Use Case) - Part 2 # testing # tutorial # django # python Comments Add Comment 3 min read Sonarqube Nedir Suleyman Suleyman Suleyman Follow Dec 13 '25 Sonarqube Nedir # tooling # security # testing # devops Comments Add Comment 4 min read Performance Testing Tools in Software Testing: JMeter, K6, Gatling & More Emily Jackson Emily Jackson Emily Jackson Follow Dec 17 '25 Performance Testing Tools in Software Testing: JMeter, K6, Gatling & More # performance # webdev # jmeter # testing 8 reactions Comments Add Comment 4 min read AI-Native QA: Transforming Quality Assurance with Intelligence-First Strategies Vishal Chincholi Vishal Chincholi Vishal Chincholi Follow Dec 11 '25 AI-Native QA: Transforming Quality Assurance with Intelligence-First Strategies # qa # ai # testing # automation Comments Add Comment 3 min read ScrumBuddy Beta Is Live! Here’s the Real Story Behind It (For the Solopreneurs Who’ll Get It Most) Guy Guy Guy Follow Dec 11 '25 ScrumBuddy Beta Is Live! Here’s the Real Story Behind It (For the Solopreneurs Who’ll Get It Most) # webdev # ai # devops # testing Comments Add Comment 4 min read How I built a Region-Aware Phone Number Generator in TypeScript limaodev limaodev limaodev Follow Dec 11 '25 How I built a Region-Aware Phone Number Generator in TypeScript # typescript # webdev # programming # testing Comments Add Comment 2 min read Accelerating Release Cycles Through Automated Regression Testing Yeahia Sarker Yeahia Sarker Yeahia Sarker Follow Dec 11 '25 Accelerating Release Cycles Through Automated Regression Testing # testing # cicd # devops # automation Comments Add Comment 4 min read PAGI::Server Performance and Hardening John Napiorkowski John Napiorkowski John Napiorkowski Follow Dec 15 '25 PAGI::Server Performance and Hardening # showdev # testing # performance # opensource 1 reaction Comments Add Comment 2 min read Why Do So Many Teams Fail at Testing? Amirsaeed Sadeghi Komjani Amirsaeed Sadeghi Komjani Amirsaeed Sadeghi Komjani Follow Dec 12 '25 Why Do So Many Teams Fail at Testing? # testing # tdd # architecture # cleancode Comments Add Comment 2 min read Software Testing Podcast - BrowserStack Community QnA - The Evil Tester Show Episode 028 Alan Richardson Alan Richardson Alan Richardson Follow Dec 15 '25 Software Testing Podcast - BrowserStack Community QnA - The Evil Tester Show Episode 028 # testing # learning # automation # community Comments Add Comment 9 min read Getting Started with pytest Developer Service Developer Service Developer Service Follow Dec 12 '25 Getting Started with pytest # python # pytest # testing Comments Add Comment 5 min read Exposing a Local Service to the Internet with Ngrok: A Quick Guide Rohan Mostofa Abir Rohan Mostofa Abir Rohan Mostofa Abir Follow Dec 15 '25 Exposing a Local Service to the Internet with Ngrok: A Quick Guide # webdev # productivity # testing Comments Add Comment 1 min read 7 things to watch for when conducting user tests Karina Egle Karina Egle Karina Egle Follow Dec 11 '25 7 things to watch for when conducting user tests # ux # ui # testing # webdev Comments Add Comment 2 min read The Illusions of Quality — Episode 12: The Future of Quality — AI, Automation, and the Human Gatekeeper ✨ Abdul Osman Abdul Osman Abdul Osman Follow Dec 9 '25 The Illusions of Quality — Episode 12: The Future of Quality — AI, Automation, and the Human Gatekeeper ✨ # qa # ai # testing # test 2 reactions Comments Add Comment 4 min read High-Throughput IoT Log Aggregator İbrahim SEZER İbrahim SEZER İbrahim SEZER Follow Dec 25 '25 High-Throughput IoT Log Aggregator # go # performance # testing # productivity 1 reaction Comments Add Comment 3 min read Visual Regression for Adaptive Interfaces: Testing That Crisis Mode Actually Looks Different CrisisCore-Systems CrisisCore-Systems CrisisCore-Systems Follow Dec 13 '25 Visual Regression for Adaptive Interfaces: Testing That Crisis Mode Actually Looks Different # testing # a11y # healthcare # react Comments Add Comment 9 min read Stop using localhost: bugs it creates and how to prevent them Rob Bogie Rob Bogie Rob Bogie Follow Dec 10 '25 Stop using localhost: bugs it creates and how to prevent them # testing # beginners # devops # webdev Comments Add Comment 8 min read Bug Fixed? 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https://dev.to/farhad_hossain_500d9cf52a/mouse-events-in-javascript-why-your-ui-flickers-and-how-to-fix-it-properly-hbf#a-practical-rule-of-thumb | Mouse Events in JavaScript: Why Your UI Flickers (and How to Fix It Properly) - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Farhad Hossain Posted on Jan 13 Mouse Events in JavaScript: Why Your UI Flickers (and How to Fix It Properly) # frontend # javascript # ui Hover interactions feel simple—until they quietly break your UI. Recently, while building a data table, I ran into a strange issue. Each row had an “Actions” column that appears when you hover over the row. It worked fine most of the time, but sometimes—especially when moving the mouse slowly or crossing row borders—the UI flickered. In some cases, two rows even showed actions at once. At first glance, it looked like a CSS or rendering bug. It wasn’t. It was a mouse event model problem . That experience led me to a deeper realization: Not all mouse events represent user intent. Some represent DOM mechanics—and confusing the two leads to fragile UI. Let’s unpack that. The Two Families of Mouse Hover Events JavaScript gives us two sets of hover events: Event Bubbles Fires when mouseover Yes Mouse enters an element or any of its children mouseout Yes Mouse leaves an element or any of its children mouseenter No Mouse enters the element itself mouseleave No Mouse leaves the element itself This difference seems subtle, but it’s one of the most important distinctions in UI engineering. Why mouseover Is Dangerous for UI State Consider this table row: <tr> <td>Name</td> <td class="actions"> <button>Edit</button> <button>Delete</button> </td> </tr> Enter fullscreen mode Exit fullscreen mode From a user’s perspective, they are still “hovering the row” when they move between the buttons. But from the browser’s perspective, something very different is happening: <tr> → <td> → <button> Each move fires new mouseover and mouseout events as the cursor travels through child elements. That means: Moving from one button to another fires mouseout on the first Which bubbles up And can look like the mouse “left the row” Your UI hears: “The row is no longer hovered.” The user never left. This mismatch between DOM movement and human intent is the root cause of flicker. How My Table Broke In my case: Each table row showed action buttons on hover Borders existed between rows When the mouse crossed that 1px border, it briefly exited one row before entering the next This triggered: mouseout → hide actions mouseover → show actions again Sometimes the timing was fast enough that: Two rows appeared active Or the UI flickered Nothing was “wrong” with the layout. The event model was simply lying about what the user was doing. Why mouseenter Solves This mouseenter and mouseleave behave very differently. They do not bubble. They only fire when the pointer actually enters or leaves the element itself—not its children. So this movement: <tr> → <td> → <button> Triggers: mouseenter(tr) Once. No false exits. No flicker. No state confusion. This makes them ideal for: Table rows Dropdown menus Tooltips Hover cards Any UI that should remain active while the cursor is inside In other words: mouseenter represents user intent mouseover represents DOM traversal When You Should Use Each Use mouseenter / mouseleave when: You are toggling UI state based on hover Child elements should not interrupt the hover Stability matters Examples: Row actions Navigation menus Profile cards Tooltips Use mouseover / mouseout when: You actually care about which child was entered. Examples: Image maps Per-icon tooltips Custom hover effects on individual elements Here, bubbling is useful. React Makes This More Subtle In React, onMouseOver and onMouseOut are wrapped in a synthetic event system. That adds another layer of propagation and re-rendering, which can amplify flicker and race conditions. This is why tables, dropdowns, and hover-driven UIs are often harder to get right than they look. A Practical Rule of Thumb If you are using mouseover to control UI visibility, you are probably building something fragile. Most hover-based UI should be built with: mouseenter mouseleave Because users don’t hover DOM nodes. They hover things . Final Thoughts That small flicker in my table wasn’t a bug—it was a reminder of how deep the browser’s event model really is. The best UI engineers don’t just write logic that works. They write logic that matches how humans actually interact with the screen. And sometimes, the difference between a glitchy UI and a rock-solid one is just a single event name. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Farhad Hossain Follow Joined Dec 10, 2025 More from Farhad Hossain How JavaScript Engines Optimize Objects, Arrays, and Maps (A V8 Performance Guide) # javascript # performance # webdev # softwareengineering 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Performance Follow Hide Tag for content related to software performance. Create Post submission guidelines Articles should be obviously related to software performance in some way. Possible topics include, but are not limited to: Performance Testing Performance Analysis Optimising for performance Scalability Resilience But most of all, be kind and humble. 💜 Older #performance posts 71 72 73 74 75 76 77 78 79 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu The Art of State Management in React: Avoiding Common Pitfalls saijami saijami saijami Follow Jun 14 '25 The Art of State Management in React: Avoiding Common Pitfalls # react # redux # performance # webdev 1 reaction Comments Add Comment 1 min read The Power of Hybrid Rendering: Elevating Web Performance and UX Vaiber Vaiber Vaiber Follow Jun 14 '25 The Power of Hybrid Rendering: Elevating Web Performance and UX # webdev # frontend # performance # architecture Comments Add Comment 7 min read When Failure is Not an Option: A Practical Case for OCaml david2am david2am david2am Follow Jun 13 '25 When Failure is Not an Option: A Practical Case for OCaml # ocaml # performance # functional # programming 1 reaction Comments Add Comment 6 min read How AI is Revolutionizing Performance Testing RamaMallika Kadali RamaMallika Kadali RamaMallika Kadali Follow Jun 13 '25 How AI is Revolutionizing Performance Testing # ai # testing # performance # qa Comments Add Comment 3 min read Micro-Frontends: Mastering Performance and Security Vaiber Vaiber Vaiber Follow Jun 12 '25 Micro-Frontends: Mastering Performance and Security # webdev # security # performance # frontend 1 reaction Comments Add Comment 7 min read Understanding Lazy Loading to Improve Web Performance Akang Web Akang Web Akang Web Follow May 8 '25 Understanding Lazy Loading to Improve Web Performance # webdev # javascript # performance # frontend Comments Add Comment 2 min read How AI is Transforming QA: Automation, Manual, and Performance Testing RamaMallika Kadali RamaMallika Kadali RamaMallika Kadali Follow Jun 11 '25 How AI is Transforming QA: Automation, Manual, and Performance Testing # testing # cicd # performance # playwright 1 reaction Comments Add Comment 2 min read Stop OOMs with Semaphores Kyle Grah Kyle Grah Kyle Grah Follow May 12 '25 Stop OOMs with Semaphores # go # backend # performance Comments Add Comment 2 min read JSON Formatting Can Make or Break Your SEO Web Utis Web Utis Web Utis Follow Jun 11 '25 JSON Formatting Can Make or Break Your SEO # webdev # performance # javascript # beginners 1 reaction Comments 1 comment 5 min read Compressing for Performance over Cost in Opensearch Aayush Jain Aayush Jain Aayush Jain Follow Jun 10 '25 Compressing for Performance over Cost in Opensearch # opensearch # performance # aws # cloud 4 reactions Comments 2 comments 6 min read ¿Qué es la REPUVE Consulta Ciudadana y por qué importa? Repuve Consulta Repuve Consulta Repuve Consulta Follow May 7 '25 ¿Qué es la REPUVE Consulta Ciudadana y por qué importa? # news # beginners # tutorial # performance Comments Add Comment 5 min read What is rate limiting & why it matters Dillion Huston Dillion Huston Dillion Huston Follow May 20 '25 What is rate limiting & why it matters # webdev # api # security # performance 6 reactions Comments Add Comment 2 min read Understanding DRAM Internals: How Channels, Banks, and DRAM Access Patterns Impact Performance Sachin Tolay Sachin Tolay Sachin Tolay Follow Jun 9 '25 Understanding DRAM Internals: How Channels, Banks, and DRAM Access Patterns Impact Performance # memory # ram # performance # tutorial 5 reactions Comments Add Comment 5 min read Understanding DRAM Internals: How Channels, Banks, and DRAM Access Patterns Impact Performance Sachin Tolay Sachin Tolay Sachin Tolay Follow Jun 9 '25 Understanding DRAM Internals: How Channels, Banks, and DRAM Access Patterns Impact Performance # memory # ram # performance # tutorial 6 reactions Comments Add Comment 5 min read How I Got x311 Faster Analytics on 110M Rows Yaroslav Demenskyi Yaroslav Demenskyi Yaroslav Demenskyi Follow May 6 '25 How I Got x311 Faster Analytics on 110M Rows # database # performance # singlestore # benchmark Comments Add Comment 3 min read Before You Reach for a Tool, Ask: Can CSS Do This Already? John Munn John Munn John Munn Follow Jun 16 '25 Before You Reach for a Tool, Ask: Can CSS Do This Already? # css # webdev # frontend # performance Comments 1 comment 5 min read Unmasking the Difference: Pre-increment (++i) vs. Post-increment (i++) in C++ Wangkai Wangkai Wangkai Follow May 29 '25 Unmasking the Difference: Pre-increment (++i) vs. Post-increment (i++) in C++ # cpp # programming # performance # cppbasics Comments Add Comment 4 min read How to Improve API Performance: Tips, Techniques & Best Practices Mrinal Maheshwari Mrinal Maheshwari Mrinal Maheshwari Follow Jun 15 '25 How to Improve API Performance: Tips, Techniques & Best Practices # backenddevelopment # performance # webperf # backend Comments 1 comment 4 min read The Anatomy of Barriers Leesoo Ahn Leesoo Ahn Leesoo Ahn Follow May 5 '25 The Anatomy of Barriers # arm # memoryordering # barriers # performance 1 reaction Comments Add Comment 4 min read Building High-Performance APIs with ASP.NET Core and C# Maria Maria Maria Follow Jun 8 '25 Building High-Performance APIs with ASP.NET Core and C# # csharp # aspnetcore # api # performance 3 reactions Comments Add Comment 5 min read A Retrospective on High-Traffic Systems, Garbage Collection Battles, and the Rise of G1 özkan pakdil özkan pakdil özkan pakdil Follow Dec 3 '25 A Retrospective on High-Traffic Systems, Garbage Collection Battles, and the Rise of G1 # java # devops # architecture # performance Comments Add Comment 3 min read WordPress Object Cache: Beyond Transients for Speed Farhan Ali Farhan Ali Farhan Ali Follow May 8 '25 WordPress Object Cache: Beyond Transients for Speed # wordpress # performance # caching # webdev Comments Add Comment 1 min read My Story of Failure Muskan Fatima Muskan Fatima Muskan Fatima Follow Jun 6 '25 My Story of Failure # performance # growing # devjournal # improvment 2 reactions Comments Add Comment 2 min read Strings, Arrays & Hash Tables — Let’s Talk About the One You’re Probably Not Using Enough OneDev OneDev OneDev Follow May 16 '25 Strings, Arrays & Hash Tables — Let’s Talk About the One You’re Probably Not Using Enough # datastructures # algorithms # hashtables # performance Comments Add Comment 2 min read Tips for Improving API Performance in ASP.NET Core Emanuele Bartolesi Emanuele Bartolesi Emanuele Bartolesi Follow for This is Learning Jun 1 '25 Tips for Improving API Performance in ASP.NET Core # aspnet # dotnet # performance # webperf 33 reactions Comments 11 comments 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://cdnjs.cloudflare.com | cdnjs.cloudflare.com Cloudflare cdnjs.cloudflare.com Introduction cdnjs.cloudflare.com is an ultra-fast, reliable, globally available content delivery network for open-source libraries. Cloudflare works with the maintainers of the cdnjs project and distributes the latest versions as they are released. What else should I know about cdnjs.cloudflare.com? You can find the libraries made available through cdnjs.cloudflare.com by searching on the cdnjs project's website . To load a distributed library, copy and paste the HTML snippet for that library in your web page. For instance, to load jQuery, embed the snippet in your web page: <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js" integrity="sha512-bLT0Qm9VnAYZDflyKcBaQ2gg0hSYNQrJ8RilYldYQ1FxQYoCLtUjuuRuZo+fjqhx/qtq/1itJ0C2ejDxltZVFg==" crossorigin="anonymous"></script> cdnjs.cloudflare.com files are served with NEL headers and allowed to be cached for a 1 year period. The NEL headers are used solely to measure the performance and stability of our content delivery network. What terms apply to cdnjs.cloudflare.com? Your use of cdnjs.cloudflare.com is subject to our Terms . By using cdnjs.cloudflare.com, you agree to our Terms, and our standard abuse process. What about the privacy of my users? cdnjs.cloudflare.com is governed by our Privacy Policy . We are committed to keep your personal information personal and private. We will not sell or rent your personal information to anyone. Please note that Cloudflare will provide the cdnjs project with anonymized and aggregated usage data regarding cdnjs.cloudflare.com that will be made publicly available, as indicated here . Have any feature suggestions for the cdnjs project? You can create an issue on the cdnjs project's GitHub page here . © Cloudflare, Inc. Privacy Terms Abuse | 2026-01-13T08:49:12 |
https://tapajyoti-bose.vercel.app | Tapajyoti Bose Home Experience Achievements About Blogs Testimonials Contact Home Experience Achievements About Blogs Testimonials Contact Hello! I am Tapajyoti Bose Product Developer Experience Upwork Freelance May 2021 - Present A Top Rated Freelancer at Upwork, an American freelancing platform and the largest network of independent professionals to get things done, from quick turnarounds to big transformations. Lounge Freelance January 2022 - Present Developed features for the web & native app which took the app from launch to 100k+ monthly active users & $100k in revenue along with $2M in negotiation pipeline. Was awarded with a 5-Star review and the following testimonial: “Tap is an exceptional software engineer. He worked in my team for nearly a year, and consistently performed to an extremely high level. In particular his strengths are his attitude, speed to output, intellectual curiosity and ability to learn new things. I can't recommend Tap highly enough!” Replai Freelance January 2022 Developed the entire UI Library for Replai, a Multi-Million Dollar Startup that leverages AI and Machine Vision to make better creative decisions at scale. Clyde.ai Freelance November 2021 – January 2022 Clyde is a AI powered Web Application which automatically calculates the value of rewards you'd earn based on your transaction data. Collaborated with the team to develop the Clyde Web Application. Element Finance Freelance November 2021 Created the Component Library for Element Finance and was awarded a 5 Star Review for the final product and the following Testimonial: "Tapajyoti was great and not only completed the job to the best of his ability but under the alotted time and budget! He was quick to communicate about issues and think on his feet. Great to work with!" Chirrup Freelance May 2021 – September 2021 Built the Dashboard UI and was awarded a 5 Star Review for the final product and the following Testimonial: “Amazing front-end developer. Tap helped build out our web app and will add value to any future project he works on. Works quickly. Easily adaptable. And helped form solutions to problems that popped up along the way. We'd happily hire him again.” HomeJam Freelance February 2021 Developed the payment confirmation page and a plethora of bug fixes for HomeJam Web App, an application delivering virtual concerts like you’ve never experienced before. Smartsapp Personal Project November 2020 - January 2021 With SmartsApp, you'll get fast and simple messaging secured with End to End Encryption for free, available on the web, all android & iOS phones, and Windows, Linux & macOS computers all over the world. Used Diffie-Hellman Key Exchange algorithm to generate the shared keys & XOR Cipher to encrypt messages. The tech stack consisted of React, Redux, Electron, Flutter & Firebase. The Algorithms Open Source Maintainer October 2020 – Present Maintaining and Adding New Algorithms to the code base of the world's largest Open Source resource for learning Data Structures & Algorithms and their implementation in any Programming Language. Hacktober Fest 2020 Open Source October 2020 Created Quality Pull Requests in the celebration of the Open Source Spirit at Hacktoberfest, a month-long celebration of open source software run by DigitalOcean in partnership with GitHub and Twilio. UnHook Personal Project October 2020 If you are one of the rare breed of people who call themselves programmers, you must have faced the following situation: You were so busy working, that you forgot to take a break from coding... now your eyes hurt due to the excessive stress on them. The solution? Use UnHook, an app that helps you unhook yourself from the screen by reminding you to take breaks at the right time. The tech stack consisted of React, Redux & Electron. Pizza Man Personal Project August 2020 Pizza Man is always open to serve you. Order all your favorite pizzas from the comfort of your home, and we will ensure free delivery for all orders. The tech stack consisted of React & Redux. Weather Man Personal Project May 2020 Weather Man has local and international weather forecasts from the most accurate weather forecasting technology featuring up-to-the-minute weather reports. The tech stack consisted of Python & Django along with Open Weather API, Chart.js & AOS. Campus 24 Internship January 2020 - July 2020 Developed the landing page and worked on the web application of Campus 24, a tech startup aiming to revolutionize the interconnections between college departments by fueling collaboration, entrepreneurial spirit, talent development, learning experience, and team spirit. Daily Coding Problems Personal Project November 2019 - February 2021 Solved 350+ interview problems from Daily Coding Problem, a mailing list for coding interview problems asked at FAANG and other top tech companies. Achievements 5+ Times Global #1 Weekly Blog Writer Dev January, 2022 Top Rated Freelancer Upwork September, 2021 Rising Talent Upwork July, 2021 Mars 2020 Helicopter Mission Contributor GitHub & NASA April, 2021 Global rank 750 Google Kickstart 2020 Round H November, 2020 🥇 Winner of Coding Competition RCC Institute of Information Technology March, 2020 🥈 1st Runner-up of Coding Competition Heritage Institute of Information Technology September, 2019 🥉 2nd Runner-up of Coding Competition Government College of Engineering and Ceramic Technology March, 2019 About I am Tapajyoti Bose, a Top Rated Freelancer on Upwork. I am also an avid Open Source Contributor with contributions ranging from Huge Feature Additions to Tiny Fixes and Documentation Changes at several Large Organizations (like Microsoft, Amazon, Material UI, Numpy, Webhint, etc.) The Client Review below, which you will find in my Upwork reviews and others like it, describes the quality of work and value that you can expect from working with me: "Highly skilled frontend developer. I was continuously impressed with how quickly Tap could help turn a concept into working product. He'll be an asset on any project he works on and I'd happily work with him again." View Resume Blogs 7 Libraries You Should Know as a React Developer 💯🔥 Sun Mar 05 2023 react javascript webdev productivity 523 27 7 JavaScript Web APIs to build Futuristic Websites you didn't know🤯 Sun Feb 19 2023 webdev javascript html beginners 820 51 7 Free Public APIs you will love as a developer💖 Sun Feb 05 2023 javascript webdev programming api 1226 27 7 Shorthand Optimization Tricks every JavaScript Developer Should Know 😎 Sun Oct 30 2022 javascript webdev programming productivity 924 56 7 Cool HTML Elements Nobody Uses Sun Oct 02 2022 webdev html javascript programming 478 40 Mastering these 7 Basics CSS Skills will make you a Frontend Wizard 🧙✨ Sun Sep 11 2022 webdev programming css beginners 625 15 View All Blogs Testimonials Tap is an exceptional software engineer. He worked in my team for nearly four years, and consistently performed to an extremely high level. In particular his strengths are his attitude, speed to output, intellectual curiosity and ability to learn new things. Jack Symonds Client (Co-Founder/CEO at Lounge) Tapajyoti was great and not only completed the job to the best of his ability but under the alotted time and budget! He was quick to communicate about issues and think on his feet. Great to work with! Tina Haibodi Client (Point of Contact, Element Finance) Had a really great experience working with Tap. Even before starting the contract he was already experimenting in a code sandbox and studying the project. He has good communication skills and delivered the work in the estimated time. Fabrizio Rinaldi Client (Co-Founder/CEO at Typefully) This is the second time working with Tapajyoti and I could not be happier. He is extremely easy to communicate with and delivers projects quickly. It is hard to find good talent and Tapajyoti is very talented! Christopher Robinson Client Tap is simply a brilliant coder. He is easily one of my top 3 hires (from over 500 hires on Upwork). I strongly recommend him. His communication is perfect and he works quickly. His code is great quality. He is honest and cares about his clients. Geoff Alan Client Tap is a skilled frontend developer. He helped us rebuild the UI for our SaaS product and we loved the finished product. He'd be an asset on any development project. Brent Ramirez Client (Co-Founder/CEO at Chirrup) Tapajyoti was great to work with. He wrote us a good article about React and always replied to our messages in time. We gladly recommend him for technical writing. Eugen Tudorache Client Tapajyoti is one of the most sincere and hardworking people I ever met. He always delivers on time and is ready to take up the next challenge. He will be an asset for any team. Wishing him all the best for his career. Sagnik Majumder Manager, Internship (Founder/CEO at Campus24) Contact Have a question? Want to Collaborate? Just want to chat? Reach out to me on Send me a message Submit Tapajyoti Bose © 2026 | 2026-01-13T08:49:12 |
https://dev.to/bingkahu/seeking-peer-connections-for-codechat-p2p-testing-4inh#contact-and-collaboration | Seeking Peer Connections for CodeChat P2P Testing - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse bingkahu Posted on Jan 12 Seeking Peer Connections for CodeChat P2P Testing # coding # github # watercooler # gamedev Project Overview I am currently testing the stability of CodeChat , a decentralized communication tool built with vanilla JavaScript and PeerJS. Unlike traditional messaging apps, this platform establishes direct WebRTC links between browsers, bypasses central databases, and ensures that data stays between the two connected nodes. Connection Invitation I am looking to establish active peer links to test the performance of the data channels and the "Identity Vault" local authentication system. How to Test it If you are interested in testing the node-to-node link: Access the repository at https://github.com/bingkahu/p2p-comms . Open the application in a modern browser. Use the 8-Digit Room ID provided in the sidebar to link your node with another persons ID (If you do not have another person you can simply open another tab, open the same link use your own account and test it by messaging yourself). Current Testing Focus Latency: Measuring message delivery speed across different network environments. Admin Controls: Testing the master broadcast and session wipe functions. UI Feedback: Evaluating the glassmorphism interface across various screen resolutions. Future Technical Milestones End-to-End Encryption: Integrating SubtleCrypto for payload security. P2P File Buffering: Enabling direct document transfer via ArrayBuffer streams. Contact and Collaboration For more detailed technical discussions or to coordinate a specific testing window, please contact me directly: Email: mgrassi1@outlook.com GitHub: bingkahu Legal and Privacy Notice By connecting to this prototype, you acknowledge that this is an experimental P2P environment. No data is stored on a server, but your Peer ID is visible to the connected party to facilitate the link. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse bingkahu Follow Full-stack developer focused on decentralized communication and privacy-centric web applications. Lead maintainer of CodeChat, an open-source peer-to-peer messaging platform built on WebRTC and PeerJS Education School Work Student Joined Jan 11, 2026 More from bingkahu I let an AI with "20 years experience" architect my project and it was a disaster # github # opensource # ai # programming 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://socket.io/docs/v4/broadcasting-events/#to-all-connected-clients-except-the-sender | Broadcasting events | Socket.IO Skip to main content Latest blog post (July 25, 2024): npm package provenance . Socket.IO Docs Guide Tutorial Examples Emit cheatsheet Server API Client API Ecosystem Help Troubleshooting Stack Overflow GitHub Discussions Slack News Blog Twitter Tools CDN Admin UI About FAQ Changelog Roadmap Become a sponsor 4.x 4.x 3.x 2.x Changelog English English Español Français Português (Brasil) 中文（中国） Search Socket.IO Documentation Server Client Events Emitting events Listening to events Broadcasting events Rooms Adapters Advanced Migrations Miscellaneous Events Broadcasting events Version: 4.x On this page Broadcasting events Socket.IO makes it easy to send events to all the connected clients. info Please note that broadcasting is a server-only feature. To all connected clients io . emit ( "hello" , "world" ) ; caution Clients that are currently disconnected (or in the process of reconnecting) won't receive the event. Storing this event somewhere (in a database, for example) is up to you, depending on your use case. To all connected clients except the sender io . on ( "connection" , ( socket ) => { socket . broadcast . emit ( "hello" , "world" ) ; } ) ; note In the example above, using socket.emit("hello", "world") (without broadcast flag) would send the event to "client A". You can find the list of all the ways to send an event in the cheatsheet . With acknowledgements Starting with Socket.IO 4.5.0, you can now broadcast an event to multiple clients and expect an acknowledgement from each one of them: io . timeout ( 5000 ) . emit ( "hello" , "world" , ( err , responses ) => { if ( err ) { // some clients did not acknowledge the event in the given delay } else { console . log ( responses ) ; // one response per client } } ) ; All broadcasting forms are supported: in a room io . to ( "room123" ) . timeout ( 5000 ) . emit ( "hello" , "world" , ( err , responses ) => { // ... } ) ; from a specific socket socket . broadcast . timeout ( 5000 ) . emit ( "hello" , "world" , ( err , responses ) => { // ... } ) ; in a namespace io . of ( "/the-namespace" ) . timeout ( 5000 ) . emit ( "hello" , "world" , ( err , responses ) => { // ... } ) ; With multiple Socket.IO servers Broadcasting also works with multiple Socket.IO servers. You just need to replace the default adapter by the Redis Adapter or another compatible adapter . In certain cases, you may want to only broadcast to clients that are connected to the current server. You can achieve this with the local flag: io . local . emit ( "hello" , "world" ) ; In order to target specific clients when broadcasting, please see the documentation about Rooms . Edit this page Last updated on Nov 15, 2025 Previous Listening to events Next Rooms To all connected clients To all connected clients except the sender With acknowledgements With multiple Socket.IO servers Documentation Guide Tutorial Examples Server API Client API Help Troubleshooting Stack Overflow GitHub Discussions Slack News Blog Twitter Tools CDN Admin UI About FAQ Changelog Roadmap Become a sponsor Copyright © 2026 Socket.IO | 2026-01-13T08:49:12 |
https://dev.to/govind_mishra_0c4dfca8d9b/building-a-no-lag-2d-multiplayer-game-clueland-with-nextjs-express-and-websockets-ob8#comments | Building a "No-Lag" 2D Multiplayer Game (Clueland) with Next.js, Express, and WebSockets - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Govind Mishra Posted on Dec 28, 2025 Building a "No-Lag" 2D Multiplayer Game (Clueland) with Next.js, Express, and WebSockets # nextjs # gamedev # performance # node Hey r/webdev / dev.to! I've been working on Clueland, a persistent 2D economic life simulator that aims to bring a truly real-time, shared world experience to the browser. We're launching soon, and I wanted to share some of the technical journey and challenges, especially around making a large-scale map feel "lag-free." The Core Problem: How do you render hundreds of player plots, mining rigs, and moving vehicles for thousands of players in real-time without crashing the browser or hitting server limits? Our Solution Stack: Frontend: Next.js + PixiJS (for GPU-accelerated canvas rendering) Real-time: Socket.io (for instant state synchronization) Backend: Express.js + PostgreSQL/Prisma (for persistent game state) Scaling: Docker Compose + Nginx (for microservices and load balancing) Key Challenges & Learnings: Spatial Partitioning: We broke the world into chunks and only stream visible chunks to the client. This significantly reduced bandwidth and client-side rendering load. State Synchronization: Implementing a robust diffing algorithm over WebSockets to only send state changes, not the entire world, preventing "lag spikes." Canvas Performance: Optimizing PixiJS with texture atlases (for ground, trees, vehicles, etc.) to ensure 60 FPS even with thousands of sprites. CORS & Docker in Prod: Navigating production Docker environments, Nginx proxying, and ensuring NEXT_PUBLIC_API_URL variables were correctly passed at build time (a recent headache!). We're now in final testing, focusing on stress-testing the multiplayer map. I'd love to hear your thoughts on the architecture, any potential bottlenecks you foresee, or how you've tackled similar problems. Link to Game: clueland.in Thanks for reading! Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Govind Mishra Follow Joined Dec 28, 2025 Trending on DEV Community Hot How to Crack Any Software Developer Interview in 2026 (Updated for AI & Modern Hiring) # softwareengineering # programming # career # interview If a problem can be solved without AI, does AI actually make it better? # ai # architecture # discuss I built an app in every frontend framework # performance # webdev # javascript # frontend 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://socket.io/ | Socket.IO Skip to main content Latest blog post (July 25, 2024): npm package provenance . Socket.IO Docs Guide Tutorial Examples Emit cheatsheet Server API Client API Ecosystem Help Troubleshooting Stack Overflow GitHub Discussions Slack News Blog Twitter Tools CDN Admin UI About FAQ Changelog Roadmap Become a sponsor 4.x 4.x 3.x 2.x Changelog English English Español Français Português (Brasil) 中文（中国） Search Socket.IO Bidirectional and low-latency communication for every platform Get started Documentation Performant In most cases, the connection will be established with WebSocket, providing a low-overhead communication channel between the server and the client. Reliable Rest assured! In case the WebSocket connection is not possible, it will fall back to HTTP long-polling. And if the connection is lost, the client will automatically try to reconnect. Scalable Scale to multiple servers and send events to all connected clients with ease. Basic example Run this example on Replit / StackBlitz / CodeSandbox Latest blog posts August 22, 2025 - Bun engine July 25, 2024 - npm package provenance July 12, 2024 - Socket.IO monorepo March 29, 2024 - Three new adapters January 12, 2024 - Chat platform Blog feed: RSS / atom Our sponsors Become a sponsor Documentation Guide Tutorial Examples Server API Client API Help Troubleshooting Stack Overflow GitHub Discussions Slack News Blog Twitter Tools CDN Admin UI About FAQ Changelog Roadmap Become a sponsor Copyright © 2026 Socket.IO | 2026-01-13T08:49:12 |
https://dev.to/diksha_p24cb010_53ab7ba6/aws-device-farm-test-your-apps-on-real-devices-at-scale-166a | AWS Device Farm: Test Your Apps on Real Devices at Scale - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse DIKSHA P 24CB010 Posted on Dec 18, 2025 AWS Device Farm: Test Your Apps on Real Devices at Scale # mobile # testing # devops # aws Building a great mobile or web application is not just about writing good code—it’s about ensuring your app works perfectly across different devices, browsers, and operating systems. This is where AWS Device Farm becomes a powerful testing solution for modern DevOps teams. What is AWS Device Farm? AWS Device Farm is a cloud-based testing service provided by Amazon Web Services that allows developers to test mobile and web applications on real physical devices hosted in AWS data centers. Why Use AWS Device Farm? In real-world usage, users access apps from many devices with different screen sizes, OS versions, and hardware capabilities. Testing on emulators alone is not enough. Reducing device management costs Catching bugs that appear only on real devices Improving app quality before production Supporting continuous testing in CI/CD pipelines Key Features of AWS Device Farm Real Device Testing Test your Android, iOS, and web applications on real smartphones and tablets, not simulators. This ensures accurate results for performance, UI, and hardware behavior. Automated Testing AWS Device Farm supports popular test frameworks such as: Appium Selenium Espresso XCTest You can run large test suites in parallel to save time. Remote Access Need to manually test your app? AWS Device Farm provides remote access to devices so you can interact with them in real time through your browser. Detailed Test Reports After every test run, Device Farm generates: Logs Screenshots Videos Performance metrics These reports make debugging faster and easier. AWS Device Farm in CI/CD AWS Device Farm integrates smoothly with CI/CD tools like AWS CodePipeline, Jenkins, GitHub Actions, and GitLab. Teams can automatically trigger tests on every build or pull request. This enables continuous testing, ensuring quality is maintained throughout the development lifecycle. Use Cases Mobile app compatibility testing Cross-browser web testing Regression testing Pre-release validation DevOps and QA automation workflows Benefits of AWS Device Farm No physical device maintenance Scalable and on-demand testing Pay only for what you use Reliable testing on real devices Things to Consider Pricing depends on device usage time Initial setup requires test framework knowledge Device availability may vary by region Final Thoughts AWS Device Farm is an excellent choice for teams that want reliable, scalable, and realistic app testing without managing their own device labs. By integrating real-device testing into CI/CD pipelines, teams can release high-quality applications with confidence.thank you @santhoshnc sir Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? 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Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse DIKSHA P 24CB010 Follow Joined Aug 25, 2025 Trending on DEV Community Hot What was your win this week??? # weeklyretro # discuss Meme Monday # discuss # watercooler # jokes The First Week at a Startup Taught Me More Than I Expected # startup # beginners # career # learning 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://bsky.app/profile/oshwassociation.bsky.social | @oshwassociation.bsky.social on Bluesky JavaScript Required This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is. Learn more about Bluesky at bsky.social and atproto.com . Profile OSHWA oshwassociation.bsky.social did:plc:afmuof3wj77f644c2nuqvxup The Open Source Hardware Association (OSHWA) aims to foster technological knowledge and encourage research that is accessible, collaborative and respects user freedom. | 2026-01-13T08:49:12 |
https://dev.to/sushantrahate/i-built-a-100100-google-lighthouse-portfolio-by-keeping-it-boring-2n2l | I Built a 100/100 Google Lighthouse Portfolio website - By Keeping It Boring - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Sushant Rahate Posted on Dec 28, 2025 I Built a 100/100 Google Lighthouse Portfolio website - By Keeping It Boring # webdev # performance # showdev # portfolio Like most developers, I once believed a portfolio had to be flashy. More animations • More motion • More “wow” And somehow… a Lighthouse score of 62 😅 So this time, I did the opposite. 👉 Portfolio: https://sushantrahate.com (Open it alongside this post if you want context.) PageSpeed Insights: https://pagespeed.web.dev/analysis/https-sushantrahate-com/vkyra56xl5?form_factor=desktop The Real Goal I didn’t want my portfolio to entertain people. I wanted it to respect their time . It should load in milliseconds And the moment it appears, the viewer should feel: “Okay. I know who this person is.” The first screen is the first impression . If that moment is unclear, everything after it is noise. So the first screen explains - without asking you to scroll : who I am what I do what I’m building No telling. Only proof. “Talk is cheap. Show me the code.” - Linus Torvalds My Constraints (Intentionally Self-Imposed) Before writing a single line of code, I set strict rules: ⚡ 100% Google Lighthouse performance 🧠 Only essential information 🚫 No heavy frameworks 🚫 No animations to wait for 🚫 No component libraries 🚫 No guessing 🚫 No effort required from the viewer ✅ Fast even on slow networks The Layout: Compact by Design Once I knew what to show, I focused on how . I chose a bento grid layout - compact, high-signal information density. People don’t read websites line by line. They scan, usually in a Z-pattern : top-left → top-right then diagonally down then left → right again So I placed sections deliberately to match that flow. 1. Starting With the Human The page begins with who I am . I mention JavaScript , not a long list of frameworks (tools change, fundamentals don’t) I mention backend and security (that’s how I think when building systems) I end with a small personal line - husband, dad to remind there’s a human behind the code No fluff. Just context. 2. What I’m Actually Building At the top, I show what I care about right now : MatriProfile - my live SaaS 👉 https://matriprofile.com A modern, multilingual, privacy-first marriage biodata generator - built end-to-end by me . Shipping a real product teaches more than any tutorial or side project ever will: product thinking, user behavior, trade-offs, and long-term maintenance. 3. Proof Over Promises I first heard this line in The Social Network , and it stuck: “Talk is cheap. Show me the code.” Instead of listing skills, I show repositories . One of them: 👉 https://github.com/sushantrahate/express-typescript-prisma-postgresql ⭐ It has 27 GitHub stars - but more importantly, it has intent . It’s a production-ready backend starter focused on: clean architecture TypeScript discipline real-world backend patterns 4. Writing for Clarity I also link to articles I’ve written. Because writing exposes understanding . If I can explain authentication, access control, or backend trade-offs in simple words, it means I’ve wrestled with those concepts long enough to earn clarity. Finally, social links sit at the bottom. The Tech Stack HTML Tailwind CSS Vanilla JavaScript JavaScript is loaded with defer , so it never blocks rendering. <script src = "./script.js" defer></script> Enter fullscreen mode Exit fullscreen mode Fetching GitHub stars is handled carefully: The API call runs only after the page has fully loaded First paint stays untouched Closing Thought A portfolio doesn’t need to explain everything. It just needs to make the right impression - fast and give the viewer clear paths to go deeper if they want to . Mine isn’t a big portfolio. It’s simple, clean, and intentional. And sometimes, boring is exactly what works. GitHub URL: https://github.com/sushantrahate/portfolio I hope this guide helps you. Happy coding! 😄 I’d love to connect - whether for work, collaboration, or just to talk systems. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Sushant Rahate Follow Web engineer, ❤️ JavaScript. Location India Education Bachelor of Computer Science Pronouns He/Him Joined Oct 3, 2018 Trending on DEV Community Hot The First Week at a Startup Taught Me More Than I Expected # startup # beginners # career # learning Stop Overengineering: How to Write Clean Code That Actually Ships 🚀 # discuss # javascript # programming # webdev How to Crack Any Software Developer Interview in 2026 (Updated for AI & Modern Hiring) # softwareengineering # programming # career # interview 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://hboehm.info/gc/ | A garbage collector for C and C++ Interface Overview Tutorial Slides FAQ Example Download License A garbage collector for C and C++ Where to get the collector Platforms Scalable multiprocessor versions Some collector details Further reading Current users Local links for this collector Local background Links Contacts, Updates, and Reporting Issues Translations of this page [ This is an updated version of the page formerly at http://www.hpl.hp.com/personal/Hans_Boehm/gc , and before that at http://reality.sgi.com/boehm/gc.html and before that at ftp://parcftp.xerox.com/pub/gc/gc.html . ] The Boehm - Demers - Weiser conservative garbage collector can be used as a garbage collecting replacement for C malloc or C++ new . It allows you to allocate memory basically as you normally would, without explicitly deallocating memory that is no longer useful. The collector automatically recycles memory when it determines that it can no longer be otherwise accessed. A simple example of such a use is given here . The collector is also used by a number of programming language implementations that either use C as intermediate code, want to facilitate easier interoperation with C libraries, or just prefer the simple collector interface. For a more detailed description of the interface, see here . Alternatively, the garbage collector may be used as a leak detector for C or C++ programs, though that is not its primary goal. The arguments for and against conservative garbage collection in C and C++ are briefly discussed in issues.html . The beginnings of a frequently-asked-questions list are here . Empirically, this collector works with most unmodified C programs, simply by replacing malloc with GC_malloc calls, replacing realloc with GC_realloc calls, and removing free calls. Exceptions are discussed in issues.html . Where to get the collector Many versions are available in the gc_source subdirectory. A recent stable version is always available as gc.tar.gz . Currently it is gc-8.2.8.tar.gz . Note that this uses the new version numbering scheme and may occasionally require a separate libatomic_ops download (see below). If that fails, try another recent explicitly numbered version in gc_source . Later versions may contain additional features, platform support, or bug fixes, but are likely to be less well tested. Version 7.3 and later require that you download a corresponding version of libatomic_ops, which should be available in https://github.com/ivmai/libatomic_ops/wiki/Download . The current (stable) version is also available as gc_source/libatomic_ops-7.8.2.tar.gz . You will need to place that in a libatomic_ops subdirectory. Previously it was best to use corresponding versions of gc and libatomic_ops, but for recent versions, it should be OK to mix and match them. Starting with 8.0, libatomic_ops is only required if the compiler does not understand gcc's C atomic intrinsics. The development version of the GC source code now resides on github, along with the downloadable packages. The GC tree itself is at https://github.com/ivmai/bdwgc/ . The libatomic_ops tree required by the GC is at https://github.com/ivmai/libatomic_ops/ . To build a working version of the collector, you will need to do something like the following, where D is the absolute path to an installation directory: cd D git clone https://github.com/ivmai/libatomic_ops git clone https://github.com/ivmai/bdwgc ln -s D/libatomic_ops D/bdwgc/libatomic_ops cd bdwgc autoreconf -vif automake --add-missing ./configure make This will require that you have C and C++ toolchains, git , automake , autoconf , and libtool already installed. Historical versions of the source can still be found on the SourceForge site (project "bdwgc") here . The garbage collector code is copyrighted by Hans-J. Boehm , Alan J. Demers, Xerox Corporation , Silicon Graphics , and Hewlett-Packard Company . It may be used and copied without payment of a fee under minimal restrictions. See the README file in the distribution or the license for more details. IT IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED OR IMPLIED. ANY USE IS AT YOUR OWN RISK . Platforms The collector is not completely portable, but the distribution includes ports to most standard PC and UNIX/Linux platforms. The collector should work on Linux, *BSD, recent Windows versions, MacOS X, HP/UX, Solaris, Tru64, Irix and a few other operating systems. Some ports are more polished than others. There are instructions for porting the collector to a new platform. Irix pthreads, Linux threads, Win32 threads, Solaris threads (old style and pthreads), HP/UX 11 pthreads, Tru64 pthreads, and MacOS X threads are supported in recent versions. Separately distributed ports For MacOS 9/Classic use, Patrick Beard's latest port were once available from http://homepage.mac.com/pcbeard/gc/ . Several Linux and BSD versions provide prepacked versions of the collector. The Debian port can be found at https://packages.debian.org/sid/libgc-dev . Scalable multiprocessor versions Kenjiro Taura, Toshio Endo, and Akinori Yonezawa developed a parallel collector based on this one. It was once available from http://www.yl.is.s.u-tokyo.ac.jp/gc/ Their collector takes advantage of multiple processors during a collection. Starting with collector version 6.0alpha1 we also do this, though with more modest processor scalability goals. Our approach is discussed briefly in scale.html . Some Collector Details The collector uses a mark-sweep algorithm. It provides incremental and generational collection under operating systems which provide the right kind of virtual memory support. (Currently this includes SunOS[45], IRIX, OSF/1, Linux, and Windows, with varying restrictions.) It allows finalization code to be invoked when an object is collected. It can take advantage of type information to locate pointers if such information is provided, but it is usually used without such information. ee the README and gc.h files in the distribution for more details. For an overview of the implementation, see here . The garbage collector distribution includes a C string ( cord ) package that provides for fast concatenation and substring operations on long strings. A simple curses- and win32-based editor that represents the entire file as a cord is included as a sample application. Performance of the nonincremental collector is typically competitive with malloc/free implementations. Both space and time overhead are likely to be only slightly higher for programs written for malloc/free (see Detlefs, Dosser and Zorn's Memory Allocation Costs in Large C and C++ Programs .) For programs allocating primarily very small objects, the collector may be faster; for programs allocating primarily large objects it will be slower. If the collector is used in a multithreaded environment and configured for thread-local allocation, it may in some cases significantly outperform malloc/free allocation in time. We also expect that in many cases any additional overhead will be more than compensated for by decreased copying etc. if programs are written and tuned for garbage collection. Further Reading: The beginnings of a frequently asked questions list for this collector are here . The following provide information on garbage collection in general : Paul Wilson's garbage collection ftp archive and GC survey . The Ravenbrook Memory Management Reference . David Chase's GC FAQ . Richard Jones' GC page and his book . The following papers describe the collector algorithms we use and the underlying design decisions at a higher level. (Some of the lower level details can be found here .) The first one is not available electronically due to copyright considerations. Most of the others are subject to ACM copyright. Boehm, H., "Dynamic Memory Allocation and Garbage Collection", Computers in Physics 9 , 3, May/June 1995, pp. 297-303. This is directed at an otherwise sophisticated audience unfamiliar with memory allocation issues. The algorithmic details differ from those in the implementation. There is a related letter to the editor and a minor correction in the next issue. Boehm, H., and M. Weiser , "Garbage Collection in an Uncooperative Environment" , Software Practice & Experience , September 1988, pp. 807-820. Boehm, H., A. Demers, and S. Shenker, "Mostly Parallel Garbage Collection" , Proceedings of the ACM SIGPLAN '91 Conference on Programming Language Design and Implementation, SIGPLAN Notices 26 , 6 (June 1991), pp. 157-164. Boehm, H., "Space Efficient Conservative Garbage Collection" , Proceedings of the ACM SIGPLAN '93 Conference on Programming Language Design and Implementation, SIGPLAN Notices 28 , 6 (June 1993), pp. 197-206. Boehm, H., "Reducing Garbage Collector Cache Misses", Proceedings of the 2000 International Symposium on Memory Management . Official version. Technical report version. Describes the prefetch strategy incorporated into the collector for some platforms. Explains why the sweep phase of a "mark-sweep" collector should not really be a distinct phase. M. Serrano, H. Boehm, "Understanding Memory Allocation of Scheme Programs", Proceedings of the Fifth ACM SIGPLAN International Conference on Functional Programming , 2000, Montreal, Canada, pp. 245-256. Official version. Earlier Technical Report version. Includes some discussion of the collector debugging facilities for identifying causes of memory retention. Boehm, H., "Fast Multiprocessor Memory Allocation and Garbage Collection", HP Labs Technical Report HPL 2000-165 . Discusses the parallel collection algorithms, and presents some performance results. Boehm, H., "Bounding Space Usage of Conservative Garbage Collectors", Proceeedings of the 2002 ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages , Jan. 2002, pp. 93-100. Official version. Technical report version. Includes a discussion of a collector facility to much more reliably test for the potential of unbounded heap growth. The following papers discuss language and compiler restrictions necessary to guaranteed safety of conservative garbage collection. We thank John Levine and JCLT for allowing us to make the second paper available electronically, and providing PostScript for the final version. Boehm, H., ``Simple Garbage-Collector-Safety'' , Proceedings of the ACM SIGPLAN '96 Conference on Programming Language Design and Implementation. Boehm, H., and D. Chase, ``A Proposal for Garbage-Collector-Safe C Compilation'' , Journal of C Language Translation 4 , 2 (Decemeber 1992), pp. 126-141. Other related information: The Detlefs, Dosser and Zorn's Memory Allocation Costs in Large C and C++ Programs . This is a performance comparison of the Boehm-Demers-Weiser collector to malloc/free, using programs written for malloc/free. Joel Bartlett's mostly copying conservative garbage collector for C++ . John Ellis and David Detlef's Safe Efficient Garbage Collection for C++ proposal. Henry Baker's paper collection . Slides for Hans Boehm's Allocation and GC Myths talk. Current users: This section has not been updated recently. Known current users of some variant of this collector include: The runtime system for GCJ , the static GNU java compiler. W3m , a text-based web browser. Some versions of the Xerox DocuPrint printer software. The Mozilla project, as leak detector. The Mono project, an open source implementation of the .NET development framework. The DotGNU Portable.NET project , another open source .NET implementation. The Irssi IRC client . The Berkeley Titanium project . The NAGWare f90 Fortran 90 compiler . Elwood Corporation's Eclipse Common Lisp system, C library, and translator. The Bigloo Scheme and Camloo ML compilers written by Manuel Serrano and others. Brent Benson's libscheme . The MzScheme scheme implementation. The University of Washington Cecil Implementation . The Berkeley Sather implementation . The Berkeley Harmonia Project . The Toba Java Virtual Machine to C translator. The Gwydion Dylan compiler . The GNU Objective C runtime . Macaulay 2 , a system to support research in algebraic geometry and commutative algebra. The Vesta configuration management system. Visual Prolog 6 . Asymptote LaTeX-compatible vector graphics language. More collector information at this site A simple illustration of how to build and use the collector. . Description of alternate interfaces to the garbage collector. Slides from an ISMM 2004 tutorial about the GC. A FAQ (frequently asked questions) list. How to use the garbage collector as a leak detector. Some hints on debugging garbage collected applications. An overview of the implementation of the garbage collector. Instructions for porting the collector to new platforms. The data structure used for fast pointer lookups. Scalability of the collector to multiprocessors. Directory containing garbage collector source. More background information at this site An attempt to establish a bound on space usage of conservative garbage collectors. Mark-sweep versus copying garbage collectors and their complexity. Pros and cons of conservative garbage collectors, in comparison to other collectors. Issues related to garbage collection vs. manual memory management in C/C++. An example of a case in which garbage collection results in a much faster implementation as a result of reduced synchronization. Slide set discussing performance of nonmoving garbage collectors. Slide set discussing Destructors, Finalizers, and Synchronization (POPL 2003). Paper corresponding to above slide set. ( Technical Report version .) A Java/Scheme/C/C++ garbage collection benchmark. Slides for talk on memory allocation myths. Slides for OOPSLA 98 garbage collection talk. Related papers. Contacts, Updates, and Reporting Issues For current updates on the collector and information on reporting issues, please see the bdwgc github page . There used to be a pair of mailing lists for GC discussions. Those are no longer active. Please see the above page for pointers to the archives. Some now ancient discussion of the collector took place on the gcc java mailing list, whose archives appear here , and also on gclist@iecc.com . Comments and bug reports may also be sent to ( boehm@acm.org ), but reporting issues on github is strongly preferred. | 2026-01-13T08:49:12 |
https://dev.to/t/webdev/page/10 | Web Development Page 10 - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Web Development Follow Hide Because the internet... Create Post submission guidelines Be nice. Be respectful. Assume best intentions. Be kind, rewind. Older #webdev posts 7 8 9 10 11 12 13 14 15 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Dependency Rollercoaster: Navigating the NPM Theme Park Manuj Sankrit Manuj Sankrit Manuj Sankrit Follow Jan 12 Dependency Rollercoaster: Navigating the NPM Theme Park # node # npm # webdev # fullstack Comments Add Comment 5 min read Choosing an i18n Strategy for Angular Admin/Dashboard Apps viacharles viacharles viacharles Follow Jan 10 Choosing an i18n Strategy for Angular Admin/Dashboard Apps # webdev # angular # i18n # npm Comments Add Comment 3 min read TypeScript --erasableSyntaxOnly 플래그, 왜 생겼고 언제 쓰나 wes5510 wes5510 wes5510 Follow Jan 10 TypeScript --erasableSyntaxOnly 플래그, 왜 생겼고 언제 쓰나 # typescript # javascript # node # webdev Comments Add Comment 2 min read Joomla View Logs component v.2.3.0 has been released! Sergey Tolkachyov Sergey Tolkachyov Sergey Tolkachyov Follow Jan 11 Joomla View Logs component v.2.3.0 has been released! # joomla # coding # php # webdev Comments Add Comment 1 min read Building Kiddomato: How We Designed an AI Picture Book Platform That Puts Children First Kiddomato Kiddomato Kiddomato Follow Jan 10 Building Kiddomato: How We Designed an AI Picture Book Platform That Puts Children First # ai # webdev 1 reaction Comments Add Comment 3 min read HTML-101 #4. HTML Headings, Paragraphs & Line Breaks Himanshu Bhatt Himanshu Bhatt Himanshu Bhatt Follow Jan 10 HTML-101 #4. HTML Headings, Paragraphs & Line Breaks # webdev # html # beginners # tutorial 5 reactions Comments Add Comment 4 min read Dynamic Configuration in React — Feature Flags Without the Jank Dmitry Tilyupo Dmitry Tilyupo Dmitry Tilyupo Follow Jan 9 Dynamic Configuration in React — Feature Flags Without the Jank # webdev # programming # javascript # react 5 reactions Comments Add Comment 4 min read Advanced Animation Techniques with svelte-animations in Svelte Lucas Bennett Lucas Bennett Lucas Bennett Follow Jan 10 Advanced Animation Techniques with svelte-animations in Svelte # svelte # webdev # programming # tutorial Comments Add Comment 9 min read I built TuneKit to escape fine-tuning hell (trending #19 on Product Hunt today) Riyanshi Bohra Riyanshi Bohra Riyanshi Bohra Follow Jan 9 I built TuneKit to escape fine-tuning hell (trending #19 on Product Hunt today) # machinelearning # ai # opensource # webdev Comments Add Comment 2 min read Separate Stack for separate Thread. Saiful Islam Saiful Islam Saiful Islam Follow Jan 10 Separate Stack for separate Thread. # webdev # operatingsystm # computerscience # architecture 2 reactions Comments Add Comment 7 min read How Modern Retail Platforms Sync POS, ERP, and eCommerce Using APIs M Antony M Antony M Antony Follow Jan 9 How Modern Retail Platforms Sync POS, ERP, and eCommerce Using APIs # retailtech # api # architecture # webdev Comments Add Comment 3 min read Building Bulletproof Dropdown Click Handling in React Chibuikem Victor Ugwu Chibuikem Victor Ugwu Chibuikem Victor Ugwu Follow Jan 10 Building Bulletproof Dropdown Click Handling in React # javascript # webdev # 100daysofcode # react Comments Add Comment 2 min read 🚨 React Re-render Methods: Reference Matters! muthu raja muthu raja muthu raja Follow Jan 11 🚨 React Re-render Methods: Reference Matters! # react # beginners # webdev # programming Comments 1 comment 1 min read Introducing MultiTyping.in – Improve Your Typing Speed & Accuracy Online | Built by Amit Kumar Ram Ram Ram Follow Jan 10 Introducing MultiTyping.in – Improve Your Typing Speed & Accuracy Online | Built by Amit Kumar # webdev # website # software # programming Comments Add Comment 2 min read Turning Multiple JPG Images into a Single PDF Made Easy Olivia Olivia Olivia Follow Jan 10 Turning Multiple JPG Images into a Single PDF Made Easy # webdev # tools # documents Comments Add Comment 1 min read What is cyber security and why is it important in today’s digital world? Ridhima Ridhima Ridhima Follow Jan 9 What is cyber security and why is it important in today’s digital world? # cybersecurity # webdev # ai # security Comments Add Comment 1 min read Node.js in 2026: Modern Practices You Should Be Using kafeel ahmad kafeel ahmad kafeel ahmad Follow Jan 9 Node.js in 2026: Modern Practices You Should Be Using # webdev # node # javascript # backend Comments Add Comment 12 min read Demystifying Docker Paul Clegg Paul Clegg Paul Clegg Follow Jan 9 Demystifying Docker # php # webdev # containers # docker Comments Add Comment 8 min read MongoDB Advanced Aggregations With Spring Boot and Amazon Corretto MongoDB Guests MongoDB Guests MongoDB Guests Follow for MongoDB Jan 9 MongoDB Advanced Aggregations With Spring Boot and Amazon Corretto # mongodb # webdev # programming # springboot Comments Add Comment 7 min read Hello DEV! I’m Shubhankar Basak: Web Developer & BCS Student Shubhankar Basak Shubhankar Basak Shubhankar Basak Follow Jan 10 Hello DEV! 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https://dev.to/kelina_cowell_qa/exploratory-testing-on-mobile-the-messy-checks-that-find-real-bugs-2ldg | Exploratory testing on mobile: the messy checks that find real bugs - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Kelina Cowell Posted on Dec 22, 2025 • Originally published at kelinacowellqa.github.io Exploratory testing on mobile: the messy checks that find real bugs # gamedev # ux # testing # qualityassurance Portfolio version (canonical, with full context and styling): https://kelinacowellqa.github.io/Manual-QA-Portfolio-Kelina-Cowell/articles/exploratory-testing.html TL;DR What it is: risk-driven exploratory sessions where design, execution, and analysis happen together. Platform context: mobile (Android), where interruptions and device state changes are normal. Timebox: short focused sessions, not long wandering playthroughs. Approach: charters, controlled variation, observation-led decisions. Outputs: defects and observations that explain behaviour, with enough context to reproduce. Exploratory testing on mobile in practice: chartered, timeboxed sessions with controlled variation, producing defects, context notes, bug reports, and evidence. About this article Exploratory testing is often summarised as “testing without scripts”. In real mobile QA work, that description is incomplete. This article explains exploratory testing on mobile as it is actually applied in a practical workflow: session structure , risk focus , interruptions and recovery , and how this approach consistently finds issues that scripted checks often miss. Examples are drawn from a real Android mobile game pass, but the focus here is the method , not the case study. What exploratory testing actually means In practice, exploratory testing is a way of working where test design, execution, and analysis happen together. You are not following a pre-written script. You are observing behaviour and choosing the next action based on risk, evidence, and what the product is doing right now. That does not mean “random testing”. It means structured freedom: you keep a clear intent, and you keep your changes controlled so outcomes remain interpretable. Why exploratory testing matters on mobile Mobile products rarely fail under perfect conditions. They fail when something changes unexpectedly. On Android especially, many failure modes are contextual and lifecycle-driven. Alarms, calls, and notifications interrupt active flows. Apps are backgrounded and resumed repeatedly. Network quality changes during critical moments (login, purchase, reward claim). UI must remain usable on small screens and unusual aspect ratios. Applied insight: For mobile exploration, compare performance across devices where possible and probe interruptions: lock screen, phone calls, network drops, switching Wi-Fi/data, rotation, and kill/restart recovery. Radu Posoi, Founder, AlkoTech Labs (ex Ubisoft QA Lead) Exploratory sessions target these risks directly instead of assuming a clean uninterrupted journey. Exploratory testing workflow in practice Exploratory test charters, not scripts Sessions start with a charter: a short statement of intent. For example, “Explore reward claim behaviour under interruptions” or “Explore recovery after network loss”. The charter defines focus , not steps. Timeboxed exploratory testing sessions Exploratory testing works best in short sessions. Timeboxing forces prioritisation and prevents unfocused wandering. Typical sessions range from 20 to 45 minutes . Applied insight: Before you go deep, verify the basics first. A short daily smoke test protects the golden path, so deeper exploratory work is not wasted rediscovering obvious breakage. Nathan Glatus, ex Senior QA / Game Integrity Analyst (Fortnite, ex Epic Games) Controlled variation: one variable at a time Rather than changing everything at once, one variable is altered at a time: lock state, network type, lifecycle state. This keeps results interpretable and defects reproducible. Exploratory testing session checklist (charter, timebox, evidence) Charter chosen (risk and focus) Timebox set (20 to 45 mins) Variables defined (one at a time) Notes captured live Evidence captured when it happens Bug report drafted while context is fresh Common mobile bugs found with exploratory testing Exploratory testing is effective at surfacing issues that are low-frequency but high-impact, especially on mobile. Soft locks where the UI appears responsive but progression is blocked. State inconsistencies after backgrounding or relaunch. Audio or visual desynchronisation after OS-level events. UI scaling or readability problems that only appear in specific contexts. Android exploratory testing example: reward claim soft lock Scenario: reward claim flow under interruptions (Android). During an exploratory session, repeatedly backgrounding and resuming the app while a reward flow was mid-animation triggered a soft lock: the UI stayed visible, but the claim state never completed, blocking progression. This did not appear during clean uninterrupted smoke testing because the trigger was lifecycle timing and state recovery. Why this matters: it is normal user behaviour on mobile, not a rare edge case. Exploratory sessions hit it because they are designed to. Bug reporting for exploratory testing: notes and evidence Because exploratory testing is adaptive, notes and evidence matter more than in scripted runs. Findings must be supported with enough context to reproduce and diagnose. Applied insight: High impact exploratory bugs live or die by their evidence. Capture context (client and device state), include frequency (for example 3/3 or 10/13), and attach a clear repro so the issue is actionable. Nathan Glatus, ex Senior QA / Game Integrity Analyst (Fortnite, ex Epic Games) Screen recordings captured during the session, not recreated later. Notes that include context, not just actions (device state, network, lifecycle transitions). Bug reports that clearly separate expected behaviour from actual behaviour. The goal is to make exploratory findings actionable, not anecdotal. Exploratory testing skills shown in this mobile pass Risk-based testing decisions Test charter creation and execution Defect analysis and clear bug reporting Reproduction step clarity under variable conditions Evidence-led communication Mobile UI and interaction awareness Device and network variation testing Key takeaways for mobile QA Exploratory testing is structured, not random. Mobile risk is contextual, not just functional. Interruptions and recovery deserve dedicated exploration. Good notes and evidence make exploratory work credible and actionable. Exploratory testing FAQ (mobile QA) How do you stop exploratory testing becoming random wandering? By using a clear charter, a strict timebox, and controlled variation. If you can’t explain what you were trying to learn in that session, the charter is too vague. What do you write down during an exploratory session? The variables that matter for reproduction: device state, network, lifecycle transitions, and what changed between attempts. Notes should capture context, not just button presses. How do you reproduce a bug found through exploration? First, reduce the scenario to the smallest set of steps that still triggers the issue. Then rerun it while changing one variable at a time until the trigger conditions are clear. What makes mobile exploratory testing different from PC or console? Mobile failure modes are often lifecycle and OS-driven: backgrounding, notifications, lock/unlock, network switching, permissions, battery and performance constraints. Normal user behaviour creates timing and recovery issues that clean runs will miss. Evidence and case study links Rebel Racing: Charter-based Exploratory & Edge-Case Testing (full artefacts and evidence): https://kelinacowellqa.github.io/Manual-QA-Portfolio-Kelina-Cowell/projects/rebel-racing/ QA Chronicles Issue 2: Rebel Racing: https://kelinacowellqa.github.io/QA-Chronicles-Kelina-Cowell/issues/issue-02-rebel-racing This dev.to post stays focused on the workflow. The case study links out to the workbook structure, runs, and evidence. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Kelina Cowell Follow I am a UK-based aspiring Game QA Tester, building hands-on experience through self-directed portfolio projects on shipped games across PC Game Pass, mobile, and VR. Location United Kingdom Work Game Qa Tester Joined Dec 21, 2025 More from Kelina Cowell Regression testing workflow: the risk first checks that keep releases stable # gamedev # testing # qualityassurance # ux Functional testing: the boring basics that catch real bugs # gametesting # qualityassurance # gamedev # ux 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/bingkahu/seeking-peer-connections-for-codechat-p2p-testing-4inh#current-testing-focus | Seeking Peer Connections for CodeChat P2P Testing - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse bingkahu Posted on Jan 12 Seeking Peer Connections for CodeChat P2P Testing # coding # github # watercooler # gamedev Project Overview I am currently testing the stability of CodeChat , a decentralized communication tool built with vanilla JavaScript and PeerJS. Unlike traditional messaging apps, this platform establishes direct WebRTC links between browsers, bypasses central databases, and ensures that data stays between the two connected nodes. Connection Invitation I am looking to establish active peer links to test the performance of the data channels and the "Identity Vault" local authentication system. How to Test it If you are interested in testing the node-to-node link: Access the repository at https://github.com/bingkahu/p2p-comms . Open the application in a modern browser. Use the 8-Digit Room ID provided in the sidebar to link your node with another persons ID (If you do not have another person you can simply open another tab, open the same link use your own account and test it by messaging yourself). Current Testing Focus Latency: Measuring message delivery speed across different network environments. Admin Controls: Testing the master broadcast and session wipe functions. UI Feedback: Evaluating the glassmorphism interface across various screen resolutions. Future Technical Milestones End-to-End Encryption: Integrating SubtleCrypto for payload security. P2P File Buffering: Enabling direct document transfer via ArrayBuffer streams. Contact and Collaboration For more detailed technical discussions or to coordinate a specific testing window, please contact me directly: Email: mgrassi1@outlook.com GitHub: bingkahu Legal and Privacy Notice By connecting to this prototype, you acknowledge that this is an experimental P2P environment. No data is stored on a server, but your Peer ID is visible to the connected party to facilitate the link. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse bingkahu Follow Full-stack developer focused on decentralized communication and privacy-centric web applications. Lead maintainer of CodeChat, an open-source peer-to-peer messaging platform built on WebRTC and PeerJS Education School Work Student Joined Jan 11, 2026 More from bingkahu I let an AI with "20 years experience" architect my project and it was a disaster # github # opensource # ai # programming 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. 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https://dev.to/t/architecture/page/10 | Architecture Page 10 - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Architecture Follow Hide The fundamental structures of a software system. Create Post Older #architecture posts 7 8 9 10 11 12 13 14 15 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Circuit Breaker in Inter-Service Communication İbrahim Gündüz İbrahim Gündüz İbrahim Gündüz Follow Jan 10 Circuit Breaker in Inter-Service Communication # java # microservices # architecture # springboot 1 reaction Comments Add Comment 7 min read Stop writing invisible "Glue Code": Why I use N8N to orchestrate Python Microservices SuryaElz SuryaElz SuryaElz Follow Jan 6 Stop writing invisible "Glue Code": Why I use N8N to orchestrate Python Microservices # showdev # architecture # python # devops Comments Add Comment 1 min read The Day My AI Started Talking to Itself (And the Math Behind Why It Always Happens) Aleksandr Kossarev Aleksandr Kossarev Aleksandr Kossarev Follow Jan 6 The Day My AI Started Talking to Itself (And the Math Behind Why It Always Happens) # ai # memory # recursion # architecture Comments Add Comment 5 min read Part 7 — What GenAI Engineering Actually Is MuzammilTalha MuzammilTalha MuzammilTalha Follow Jan 5 Part 7 — What GenAI Engineering Actually Is # systemdesign # architecture # softwareengineering # ai Comments Add Comment 1 min read The Grid Is Running Out of Time And Modernization Can’t Be Treated as Optional Josh Hernandez Josh Hernandez Josh Hernandez Follow Jan 4 The Grid Is Running Out of Time And Modernization Can’t Be Treated as Optional # discuss # architecture # systemdesign Comments Add Comment 3 min read SwiftUI Navigation State Restoration (Cold Launch, Deep Links & Tabs) Sebastien Lato Sebastien Lato Sebastien Lato Follow Jan 4 SwiftUI Navigation State Restoration (Cold Launch, Deep Links & Tabs) # swiftui # navigation # architecture # state Comments Add Comment 2 min read Snowflake Data Cloud: A Comprehensive Guide Data Tech Bridge Data Tech Bridge Data Tech Bridge Follow Jan 5 Snowflake Data Cloud: A Comprehensive Guide # architecture # cloud # database # tutorial Comments Add Comment 31 min read Stop Hardcoding Dashboards: Why Your Stack Needs a Proper BI Layer Best Tech Company Best Tech Company Best Tech Company Follow Jan 6 Stop Hardcoding Dashboards: Why Your Stack Needs a Proper BI Layer # architecture # data # productivity Comments Add Comment 2 min read Centralizing Email Infrastructure on AWS with SESMailEngine Uros M. Uros M. Uros M. Follow Jan 4 Centralizing Email Infrastructure on AWS with SESMailEngine # architecture # aws # serverless Comments Add Comment 6 min read Beyond the Chatbot: Architecture for Production-Grade Agents (Context as a Service) Imran Siddique Imran Siddique Imran Siddique Follow Jan 4 Beyond the Chatbot: Architecture for Production-Grade Agents (Context as a Service) # agents # ai # architecture # llm Comments Add Comment 3 min read Building a High-Performance Link Shortener with Next.js 16, Supabase, and Edge Functions Marius Memu Marius Memu Marius Memu Follow Jan 4 Building a High-Performance Link Shortener with Next.js 16, Supabase, and Edge Functions # architecture # nextjs # performance # tutorial Comments Add Comment 3 min read RAG Isn’t a Modeling Problem. It’s a Data Engineering Problem. Alex Merced Alex Merced Alex Merced Follow Jan 6 RAG Isn’t a Modeling Problem. It’s a Data Engineering Problem. # architecture # dataengineering # llm # rag 1 reaction Comments Add Comment 6 min read Why React Native is My Go-To Choice for Production Apps 🚀 Habiba Shahidi Habiba Shahidi Habiba Shahidi Follow Jan 6 Why React Native is My Go-To Choice for Production Apps 🚀 # react # architecture # programming # productivity Comments Add Comment 2 min read Proxy Inverso Agustin Ezequiel Acevedo Agustin Ezequiel Acevedo Agustin Ezequiel Acevedo Follow for Adini Jan 5 Proxy Inverso # sre # cloud # linux # architecture Comments Add Comment 4 min read 🌈 Looking for Guidance: I’m Building an HRT Journey Tracker Suite, but I’m Stuck codebunny20 codebunny20 codebunny20 Follow Jan 10 🌈 Looking for Guidance: I’m Building an HRT Journey Tracker Suite, but I’m Stuck # discuss # architecture # help # privacy Comments 2 comments 2 min read Crash-safe JSON at scale: atomic writes + recovery without a DB Konstantin Konstantin Konstantin Follow Jan 4 Crash-safe JSON at scale: atomic writes + recovery without a DB # python # json # backend # architecture Comments Add Comment 13 min read I gave my Go programs a "nervous system" so they can feel pain and disobey me Gustavo Almendras Gustavo Almendras Gustavo Almendras Follow Jan 5 I gave my Go programs a "nervous system" so they can feel pain and disobey me # go # opensource # programming # architecture Comments Add Comment 1 min read Storage for Developers Dipali Kulshrestha Dipali Kulshrestha Dipali Kulshrestha Follow Jan 10 Storage for Developers # architecture # aws # developer # learning 1 reaction Comments 1 comment 2 min read Built a Java Multi-Client Group Chat Application using Socket Programming Harini Emmadi Harini Emmadi Harini Emmadi Follow Jan 4 Built a Java Multi-Client Group Chat Application using Socket Programming # architecture # java # networking # beginners Comments Add Comment 2 min read Do you need state management still ? Konfy Konfy Konfy Follow Jan 4 Do you need state management still ? # discuss # architecture # javascript Comments Add Comment 2 min read Prompts are logic, not strings: Why I contributed to Convo-Lang Sergey Inozemtsev Sergey Inozemtsev Sergey Inozemtsev Follow Jan 4 Prompts are logic, not strings: Why I contributed to Convo-Lang # architecture # llm # promptengineering # softwareengineering Comments Add Comment 3 min read Node.js Scaling: Ensure App Stability with a Resilient Microservices Transformation wellallyTech wellallyTech wellallyTech Follow Jan 5 Node.js Scaling: Ensure App Stability with a Resilient Microservices Transformation # architecture # node # kubernetes # scaling Comments Add Comment 2 min read Custodial vs Non-Custodial: The Key Architecture Decision for AI Agent Wallets L_X_1 L_X_1 L_X_1 Follow Jan 5 Custodial vs Non-Custodial: The Key Architecture Decision for AI Agent Wallets # architecture # security Comments Add Comment 5 min read Policy Enforcement Latency: Real-World Benchmarks L_X_1 L_X_1 L_X_1 Follow Jan 5 Policy Enforcement Latency: Real-World Benchmarks # architecture Comments Add Comment 3 min read Google Calendar - Day View (HLD) Arghya Majumder Arghya Majumder Arghya Majumder Follow Jan 9 Google Calendar - Day View (HLD) # architecture # interview # systemdesign Comments Add Comment 29 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/help/customizing-your-feed#$%7Bentry.target.id%7D | Customizing Your Feed - DEV Help - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Help The latest help documentation, tips and tricks from the DEV Community. Help > Customizing Your Feed Customizing Your Feed In this article The "Feed" Tags Follow Tags Hide Tags Users Follow Users Block Users Your Reading List Common Questions What about my post's Google ranking? Tailor your reading experience on DEV to suit your preferences. The "Feed" The home page is tailored to each individual DEV member based on what they're following. Every now and then, the DEV Team may "pin" a post to the homepage if it's an announcement that is relevant to all folks, but these are generally posts from the DEV Team. Your feed is where you'll discover a diverse range of articles published by developers worldwide. You can filter the content displayed on your feed based on the type of articles you want to read. Currently, we offer three feed sort options: Relevant, Latest, and Top. Follow tags and users to customize your feed and discover content tailored to your interests. Utilize Subscription Options: With subscription indicators, you can subscribe to new articles from users or organizations you follow, as well as through any of your existing comment subscriptions. Easily manage your subscriptions and unsubscribe from any article or thread that's becoming too popular. With these features, you'll never miss out on an interesting discussion happening on DEV. Stay informed and engaged with the latest comments and articles tailored to your interests. Tags Follow Tags Tags are unique keywords attached to posts to categorize related articles under specific and defined groups. They cover a wide range of topics and feature thousands of posts, from coding tutorials to career advice, catering to both beginners and experienced developers. Following tags on DEV means subscribing to updates and content related to specific topics of interest. By following a tag, you'll see relevant posts in your feed or notifications, enabling you to stay informed, personalize your experience, and connect with others who share similar interests within the community. Hide Tags Just as you can follow tags, you can also hide them. Articles with hidden tags will no longer appear in your Relevant feed, providing you with a more tailored browsing experience. Hiding tags gives you greater control over your feed. Just follow these steps: Tags Page: Visit the tags page and use the search feature to find and hide specific tags. Dashboard: Navigate to the "Following tags" section on your dashboard. Press the three dots to access the hide option and conceal tags from your feed. You can easily manage your Hidden Tags directly from your dashboard. Access the "Hidden tags" section to view and unhide tags at any time, bringing articles with those tags back to your feed. Users Follow Users In order to stay in touch with people in your feed, you can follow them! Just navigate to the member's page and tap that follow button to get alerts when they post new content and prioritize their content in your feed. Block Users You are always able to block users from your feed and from seeing your content by navigating to the three dots in the top right corner of their page and clicking Block. If this member is posting especially harmful content or is a spam account, feel free to also flag this member for us in the same location. Your Reading List By clicking the Bookmark button on an article, you can collect posts to read later and keep them forever in your dashboard. To access these articles, simply navigate to your profile icon, click on "Reading List," and you'll find all your saved posts there." Common Questions What about my post's Google ranking? You can set the canonical_url of your post before publishing so that Google knows where to send the link juice (that precious, precious link juice). 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/t/vue | Vue - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Vue Follow Hide Official tag for the Vue.js JavaScript Framework Create Post about #vue Vue.js is a progressive JavaScript framework for building user interfaces. • Official Guide • API Reference • Style Guide • Cookbook Older #vue posts 1 2 3 4 5 6 7 8 9 … 75 … 289 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu 🙀How to Create a CRAZY Roller Coaster Builder (🎢RollerCoaster.js + React Three Fiber + AI) Web Developer Hyper Web Developer Hyper Web Developer Hyper Follow Jan 12 🙀How to Create a CRAZY Roller Coaster Builder (🎢RollerCoaster.js + React Three Fiber + AI) # ai # webdev # vue # angular 28 reactions Comments 9 comments 6 min read Jordium GanttChart v1.7.1: Making a Gantt Component Truly Controllable in Vue 3 Nelson Li Nelson Li Nelson Li Follow Jan 13 Jordium GanttChart v1.7.1: Making a Gantt Component Truly Controllable in Vue 3 # webdev # programming # vue # gantt 5 reactions Comments Add Comment 2 min read Building a Casio‑Style Scientific Calculator with Vue 3 + TypeScript A0mineTV A0mineTV A0mineTV Follow Jan 12 Building a Casio‑Style Scientific Calculator with Vue 3 + TypeScript # vue # typescript # frontend # javascript Comments Add Comment 3 min read Velo: A Cross-Platform Network Speed Monitor Built with Go & Wails kt kt kt Follow Jan 10 Velo: A Cross-Platform Network Speed Monitor Built with Go & Wails # showdev # wails # go # vue Comments Add Comment 3 min read The Birth of Websites: A Visual Journey through IT History kt kt kt Follow Jan 9 The Birth of Websites: A Visual Journey through IT History # showdev # vue # webdev # history Comments Add Comment 2 min read Roast Feast is LIVE: How I shipped a social platform as a solo dev (Nuxt 3 + Supabase) Mateusz Szczudłowski Mateusz Szczudłowski Mateusz Szczudłowski Follow Jan 9 Roast Feast is LIVE: How I shipped a social platform as a solo dev (Nuxt 3 + Supabase) # showdev # nuxt # supabase # vue Comments Add Comment 3 min read The Hidden Cost of Global Stores in Vue (and When They’re Still Worth It) Jakub Andrzejewski Jakub Andrzejewski Jakub Andrzejewski Follow Jan 12 The Hidden Cost of Global Stores in Vue (and When They’re Still Worth It) # vue # typescript # performance # webperf 2 reactions Comments Add Comment 3 min read Nuxt Tutorial 7 - UI Integrations Alois Sečkár Alois Sečkár Alois Sečkár Follow Jan 11 Nuxt Tutorial 7 - UI Integrations # nuxt # vue # tutorial # webdev 1 reaction Comments Add Comment 8 min read Storybook in a Laravel + Inertia (Vue 3) app: building a modal + interaction tests A0mineTV A0mineTV A0mineTV Follow Jan 5 Storybook in a Laravel + Inertia (Vue 3) app: building a modal + interaction tests # laravel # vue # storybook # vite Comments Add Comment 6 min read Why You Shouldn’t Manually Define a Vue Component’s name Kelvin Kelvin Kelvin Follow Jan 4 Why You Shouldn’t Manually Define a Vue Component’s name # codequality # javascript # vue Comments Add Comment 2 min read Fixing Real-Time Notification Issues Using Vue, Laravel, and Socket.IO Mobeen ul Hassan Hashmi Mobeen ul Hassan Hashmi Mobeen ul Hassan Hashmi Follow Jan 4 Fixing Real-Time Notification Issues Using Vue, Laravel, and Socket.IO # vue # laravel # websocket # javascript Comments Add Comment 1 min read I Built an i18n Library That Works with Rails/Laravel and React/Vue usapopopooon usapopopooon usapopopooon Follow Jan 2 I Built an i18n Library That Works with Rails/Laravel and React/Vue # i18n # react # vue # webdev Comments Add Comment 4 min read Crypto Forge - Embracing Nuxt James 'Dante' Midzi James 'Dante' Midzi James 'Dante' Midzi Follow Jan 6 Crypto Forge - Embracing Nuxt # nuxt # vue # api 2 reactions Comments Add Comment 3 min read Angular vs React vs Vue: Which Should You Learn in 2026? kafeel ahmad kafeel ahmad kafeel ahmad Follow Dec 31 '25 Angular vs React vs Vue: Which Should You Learn in 2026? # vue # react # javascript # angular Comments Add Comment 16 min read UI Tectonic Plates are on the Move? Basstardd Basstardd Basstardd Follow Dec 29 '25 UI Tectonic Plates are on the Move? # ui # react # vue # angular Comments Add Comment 2 min read New in Vue - December 2025 Alois Sečkár Alois Sečkár Alois Sečkár Follow Dec 29 '25 New in Vue - December 2025 # webdev # vue # nuxt # vite Comments Add Comment 4 min read A Frontend for Stable Diffusion CPP Fabricio Fabricio Fabricio Follow Dec 28 '25 A Frontend for Stable Diffusion CPP # ai # electron # vue # opensource Comments Add Comment 1 min read WebForms Core 2 in NodeJS - Don't use React, Vue, or Angular Elanat Framework Elanat Framework Elanat Framework Follow Dec 26 '25 WebForms Core 2 in NodeJS - Don't use React, Vue, or Angular # node # react # vue # webformscore Comments Add Comment 6 min read Most Developers Don’t Need a UI Library — They Need Better Components Jitendra Patel Jitendra Patel Jitendra Patel Follow Dec 25 '25 Most Developers Don’t Need a UI Library — They Need Better Components # webdev # tailwindcss # opensource # vue Comments Add Comment 1 min read Laravel + Vue (Inertia) + gRPC: building a simple BFF that talks to a gRPC User service A0mineTV A0mineTV A0mineTV Follow Jan 3 Laravel + Vue (Inertia) + gRPC: building a simple BFF that talks to a gRPC User service # laravel # vue # grpc # inertia 1 reaction Comments Add Comment 5 min read Nuxt Tutorial 7 - Adopting CSS Alois Sečkár Alois Sečkár Alois Sečkár Follow Dec 21 '25 Nuxt Tutorial 7 - Adopting CSS # nuxt # vue # tutorial # webdev Comments Add Comment 6 min read Zombie State in Pinia: A Silent Bug You Might Already Have hichem ben chaabene hichem ben chaabene hichem ben chaabene Follow Dec 19 '25 Zombie State in Pinia: A Silent Bug You Might Already Have # webdev # vue # pinia Comments Add Comment 3 min read Introducing Vue DnD Kit: A New Drag-and-Drop Library for Vue 3 Ryan Carter Ryan Carter Ryan Carter Follow Dec 24 '25 Introducing Vue DnD Kit: A New Drag-and-Drop Library for Vue 3 # ui # a11y # vue # javascript 1 reaction Comments Add Comment 3 min read VueJS Vs Angular: Choose The Right Framework kevin walker kevin walker kevin walker Follow Dec 16 '25 VueJS Vs Angular: Choose The Right Framework # vue # angular # programming # webdev 1 reaction Comments Add Comment 10 min read Building a Task Manager with Laravel + Inertia.js (Vue 3): CRUD, Tags, Filters, and a Kanban Board A0mineTV A0mineTV A0mineTV Follow Jan 2 Building a Task Manager with Laravel + Inertia.js (Vue 3): CRUD, Tags, Filters, and a Kanban Board # laravel # inertia # vue # typescript 1 reaction Comments Add Comment 5 min read loading... trending guides/resources Choosing Between Vue.js and Next.js: A Practical Guide for Developers Why Your Vue App Is Reactive Too Much (and How to Fix It) How to handle Async Rendering in Vue with Suspense? Nuxt Tutorial 4 - Server Side How to Implement Content Security Policy in Nuxt Nuxt Tutorial 5 - Middleware How to Enable Storyblok Visual Editor in Production? How I Built Kerminal: A Free, Open-Source Terminal & SSH Manager with Multi-Device Sync Multiple Vue Components in a Single File with Vue Vine How to Vue.js: Create Your First Project (using Vite) Nuxt Tutorial 1 - First Steps Nuxt Tutorial 3 - Utils & Composables React vs Next.js vs Vue: Which Frontend Framework Wins in 2026? Nuxt Tutorial - Introduction Using Vue’s Custom Renderer API to Build Interfaces Beyond the DOM Angular vs React vs Vue: Which Should You Learn in 2026? Building a Hotel Booking System with laravel, Inertia.js and Vue.js New in Vue - December 2025 Nuxt 4.2 — A Deep, Comprehensive Guide to Everything New The Last SVG Tool You’ll Ever Need: A Zero-Dependency Alternative to SVGR 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/help/customizing-your-feed#Follow-Users | Customizing Your Feed - DEV Help - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Help The latest help documentation, tips and tricks from the DEV Community. Help > Customizing Your Feed Customizing Your Feed In this article The "Feed" Tags Follow Tags Hide Tags Users Follow Users Block Users Your Reading List Common Questions What about my post's Google ranking? Tailor your reading experience on DEV to suit your preferences. The "Feed" The home page is tailored to each individual DEV member based on what they're following. Every now and then, the DEV Team may "pin" a post to the homepage if it's an announcement that is relevant to all folks, but these are generally posts from the DEV Team. Your feed is where you'll discover a diverse range of articles published by developers worldwide. You can filter the content displayed on your feed based on the type of articles you want to read. Currently, we offer three feed sort options: Relevant, Latest, and Top. Follow tags and users to customize your feed and discover content tailored to your interests. Utilize Subscription Options: With subscription indicators, you can subscribe to new articles from users or organizations you follow, as well as through any of your existing comment subscriptions. Easily manage your subscriptions and unsubscribe from any article or thread that's becoming too popular. With these features, you'll never miss out on an interesting discussion happening on DEV. Stay informed and engaged with the latest comments and articles tailored to your interests. Tags Follow Tags Tags are unique keywords attached to posts to categorize related articles under specific and defined groups. They cover a wide range of topics and feature thousands of posts, from coding tutorials to career advice, catering to both beginners and experienced developers. Following tags on DEV means subscribing to updates and content related to specific topics of interest. By following a tag, you'll see relevant posts in your feed or notifications, enabling you to stay informed, personalize your experience, and connect with others who share similar interests within the community. Hide Tags Just as you can follow tags, you can also hide them. Articles with hidden tags will no longer appear in your Relevant feed, providing you with a more tailored browsing experience. Hiding tags gives you greater control over your feed. Just follow these steps: Tags Page: Visit the tags page and use the search feature to find and hide specific tags. Dashboard: Navigate to the "Following tags" section on your dashboard. Press the three dots to access the hide option and conceal tags from your feed. You can easily manage your Hidden Tags directly from your dashboard. Access the "Hidden tags" section to view and unhide tags at any time, bringing articles with those tags back to your feed. Users Follow Users In order to stay in touch with people in your feed, you can follow them! Just navigate to the member's page and tap that follow button to get alerts when they post new content and prioritize their content in your feed. Block Users You are always able to block users from your feed and from seeing your content by navigating to the three dots in the top right corner of their page and clicking Block. If this member is posting especially harmful content or is a spam account, feel free to also flag this member for us in the same location. Your Reading List By clicking the Bookmark button on an article, you can collect posts to read later and keep them forever in your dashboard. To access these articles, simply navigate to your profile icon, click on "Reading List," and you'll find all your saved posts there." Common Questions What about my post's Google ranking? You can set the canonical_url of your post before publishing so that Google knows where to send the link juice (that precious, precious link juice). 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/datalaria/proyecto-weather-service-parte-2-construyendo-el-frontend-interactivo-con-github-pages-o-netlify-3oc0#1-carga-din%C3%A1mica-de-ciudades | Proyecto Weather Service (Parte 2): Construyendo el Frontend Interactivo con GitHub Pages o Netlify y JavaScript - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Daniel for Datalaria Posted on Jan 13 • Originally published at datalaria.com Proyecto Weather Service (Parte 2): Construyendo el Frontend Interactivo con GitHub Pages o Netlify y JavaScript # frontend # javascript # spanish # tutorial En la primera parte de esta serie , sentamos las bases de nuestro servicio meteorológico global. Construimos un script de Python para obtener datos del clima de OpenWeatherMap, los almacenamos eficientemente en ficheros CSV separados por ciudad y automatizamos todo el proceso de recolección utilizando GitHub Actions. Nuestro "robot" está diligentemente recopilando datos 24/7. Pero, ¿de qué sirven los datos si no puedes verlos? Hoy, cambiamos nuestro enfoque al frontend : la construcción de un dashboard interactivo y fácil de usar que permita a cualquiera explorar los datos meteorológicos que hemos recopilado. Aprovecharemos el poder del alojamiento de sitios estáticos con GitHub Pages o Netlify , utilizaremos JavaScript "vainilla" para darle vida y nos apoyaremos en algunas excelentes librerías para el manejo y la visualización de datos. ¡Hagamos que nuestros datos brillen! Alojamiento Web Gratuito: GitHub Pages vs. Netlify El primer obstáculo para cualquier proyecto web es el alojamiento. Los servidores tradicionales pueden ser costosos y complejos de gestionar. Siguiendo nuestra filosofía "serverless y gratis", tanto GitHub Pages como Netlify son soluciones perfectas para alojar sitios web estáticos directamente desde tu repositorio de GitHub. Opción 1: GitHub Pages Permite alojar sitios web estáticos directamente desde tu repositorio de GitHub. La activación es trivial: Ve a Settings > Pages en tu repositorio. Selecciona tu rama main (o la rama que contenga tu contenido web) como fuente. Elige la carpeta /root (o una carpeta /docs si lo prefieres) como la ubicación de tus archivos web. Haz clic en Save . Y así, tu archivo index.html (y cualquier recurso vinculado) se vuelve accesible públicamente en una URL como https://tu-usuario.github.io/tu-nombre-de-repositorio/ . ¡Sencillo, efectivo y gratuito! 🚀 Opción 2: Netlify (¡la elección final para este proyecto!) Para este proyecto, finalmente he optado por Netlify por su flexibilidad, la facilidad para gestionar dominios personalizados y su integración con el despliegue continuo. Además, me permite alojar el proyecto directamente bajo mi dominio de Datalaria ( https://datalaria.com/apps/weather/ ). Pasos para desplegar en Netlify: Conectar tu Repositorio : Inicia sesión en Netlify. Haz clic en "Add new site" y luego en "Import an existing project". Conecta tu cuenta de GitHub y selecciona el repositorio de tu proyecto Weather Service. Configuración de Despliegue : Owner : Tu cuenta de GitHub. Branch to deploy : main (o la rama donde tengas tu código frontend). Base directory : Deja esto vacío si tu index.html y assets están en la raíz del repositorio, o especifica una subcarpeta si es el caso (ej., /frontend ). Build command : Déjalo vacío, ya que nuestro frontend es puramente estático sin necesidad de un paso de build (sin frameworks como React/Vue). Publish directory : . (o la subcarpeta que contenga tus archivos estáticos, ej., /frontend ). Desplegar Sitio : Haz clic en "Deploy site". Netlify tomará tu repositorio, lo desplegará y te proporcionará una URL aleatoria. Dominio Personalizado (Opcional pero recomendado) : Para usar un dominio como datalaria.com/apps/weather/ : Ve a Site settings > Domain management > Domains > Add a custom domain . Sigue los pasos para añadir tu dominio y configurarlo con los DNS de tu proveedor (añadiendo registros CNAME o A ). Para la ruta específica ( /apps/weather/ ), necesitarás configurar una "subcarpeta" o "base URL" en tu aplicación si no está directamente en la raíz del dominio. En este caso, nuestro index.html está diseñado para ser servido desde una subruta. Netlify gestiona esto de forma transparente una vez que el sitio está desplegado y tu dominio configurado. ¡Así de sencillo! Cada git push a tu rama configurada activará un nuevo despliegue en Netlify, manteniendo tu dashboard siempre actualizado. La Pila Tecnológica del Frontend: HTML, CSS y JavaScript (con una pequeña ayuda) Para este dashboard, opté por un enfoque ligero: HTML puro para la estructura, un poco de CSS para los estilos y JavaScript "vainilla" (sin frameworks complejos) para la interactividad. Para manejar tareas específicas, incorporé dos librerías fantásticas: PapaParse.js : El mejor parser de CSV del lado del cliente para el navegador. Es el puente entre nuestros archivos CSV en bruto y las estructuras de datos de JavaScript que necesitamos para la visualización. Chart.js : Una potente y flexible librería de gráficos JavaScript que facilita enormemente la creación de gráficos bonitos, responsivos e interactivos. La Lógica del Dashboard: Dando Vida a los Datos en index.html Nuestro index.html actúa como el lienzo principal, orquestando la obtención, el parseo y la representación de los datos meteorológicos. 1. Carga Dinámica de Ciudades En lugar de codificar una lista de ciudades, queremos que nuestro dashboard se actualice automáticamente si añadimos nuevas ciudades en el backend. Lo logramos obteniendo un simple archivo ciudades.txt (que contiene un nombre de ciudad por línea) y poblando dinámicamente un elemento desplegable <select> utilizando la API fetch de JavaScript. const citySelector = document . getElementById ( ' citySelector ' ); let myChart = null ; // Variable global para almacenar la instancia de Chart.js async function cargarListaCiudades () { try { const response = await fetch ( ' ciudades.txt ' ); const text = await response . text (); // Filtramos las líneas vacías del archivo de texto const ciudades = text . split ( ' \n ' ). filter ( line => line . trim () !== '' ); ciudades . forEach ( ciudad => { const option = document . createElement ( ' option ' ); option . value = ciudad ; option . textContent = ciudad ; citySelector . appendChild ( option ); }); // Cargamos la primera ciudad por defecto al inicio de la página if ( ciudades . length > 0 ) { cargarYDibujarDatos ( ciudades [ 0 ]); } } catch ( error ) { console . error ( ' Error cargando la lista de ciudades: ' , error ); // Opcional: Mostrar un mensaje de error amigable al usuario } } // Disparamos la carga de ciudades cuando el DOM esté completamente cargado document . addEventListener ( ' DOMContentLoaded ' , cargarListaCiudades ); Enter fullscreen mode Exit fullscreen mode 2. Reacción a la Selección del Usuario Cuando un usuario selecciona una ciudad del desplegable, necesitamos responder de inmediato. Un addEventListener en el elemento <select> detecta el evento change y llama a nuestra función principal para obtener y dibujar los datos de la ciudad recién seleccionada. citySelector . addEventListener ( ' change ' , ( event ) => { const ciudadSeleccionada = event . target . value ; cargarYDibujarDatos ( ciudadSeleccionada ); }); Enter fullscreen mode Exit fullscreen mode 3. Obtención, Parseo y Dibujado de Datos Esta es la función central donde todo cobra vida. Es responsable de: Construir la URL para el archivo CSV específico de la ciudad (ej., datos/León.csv ). Utilizar Papa.parse para descargar y procesar el contenido del CSV directamente en el navegador. PapaParse maneja la obtención y el parseo asíncronos, lo que lo hace increíblemente fácil. Extraer las etiquetas (fechas) y los datos (temperaturas) relevantes del CSV parseado para Chart.js. ¡Crucial! : Antes de dibujar un nuevo gráfico, debemos destruir la instancia anterior de Chart.js ( if (myChart) { myChart.destroy(); } ). ¡Olvidar este paso lleva a gráficos superpuestos y problemas de rendimiento! 💥 Crear una nueva instancia de Chart() con los datos actualizados. Adicionalmente, llama a una función para cargar y mostrar la predicción de IA para esa ciudad, integrándola sin problemas en el dashboard. function cargarYDibujarDatos ( ciudad ) { const csvUrl = `datos/ ${ ciudad } .csv` ; // Nota la carpeta 'datos/' de la Parte 1 const ctx = document . getElementById ( ' weatherChart ' ). getContext ( ' 2d ' ); Papa . parse ( csvUrl , { download : true , // Indica a PapaParse que descargue el archivo header : true , // Trata la primera fila como encabezados skipEmptyLines : true , complete : function ( results ) { const datosClimaticos = results . data ; // Extraer etiquetas (fechas) y datos (temperaturas) const etiquetas = datosClimaticos . map ( fila => fila . fecha_hora . split ( ' ' )[ 0 ]); // Extraer solo la fecha const tempMax = datosClimaticos . map ( fila => parseFloat ( fila . temp_max_c )); const tempMin = datosClimaticos . map ( fila => parseFloat ( fila . temp_min_c )); // Destruir la instancia de gráfico anterior si existe para evitar superposiciones if ( myChart ) { myChart . destroy (); } // Crear una nueva instancia de Chart.js myChart = new Chart ( ctx , { type : ' line ' , data : { labels : etiquetas , datasets : [{ label : `Temp Máx (°C) - ${ ciudad } ` , data : tempMax , borderColor : ' rgb(255, 99, 132) ' , tension : 0.1 }, { label : `Temp Mín (°C) - ${ ciudad } ` , data : tempMin , borderColor : ' rgb(54, 162, 235) ' , tension : 0.1 }] }, options : { // Opciones del gráfico para responsividad, título, etc. responsive : true , maintainAspectRatio : false , scales : { y : { beginAtZero : false } }, plugins : { legend : { position : ' top ' }, title : { display : true , text : `Datos Históricos del Clima para ${ ciudad } ` } } } }); // Cargar y mostrar la predicción de IA cargarPrediccion ( ciudad ); }, error : function ( err , file ) { console . error ( " Error al parsear el CSV: " , err , file ); // Opcional: mostrar un mensaje de error amigable en el dashboard if ( myChart ) { myChart . destroy (); } // Limpiar gráfico si falla la carga } }); } Enter fullscreen mode Exit fullscreen mode 4. Mostrar Predicciones de IA La integración de las predicciones de IA (en las que profundizaremos en la Parte 3) también se gestiona desde el frontend. El backend genera un archivo predicciones.json , y nuestro JavaScript simplemente obtiene este JSON, encuentra la predicción para la ciudad seleccionada y la muestra. async function cargarPrediccion ( ciudad ) { const predictionElement = document . getElementById ( ' prediction ' ); try { const response = await fetch ( ' predicciones.json ' ); const predicciones = await response . json (); if ( predicciones && predicciones [ ciudad ]) { predictionElement . textContent = `Predicción de Temp. Máx. para mañana: ${ predicciones [ ciudad ]. toFixed ( 1 )} °C` ; } else { predictionElement . textContent = ' Predicción no disponible. ' ; } } catch ( error ) { console . error ( ' Error cargando predicciones: ' , error ); predictionElement . textContent = ' Error al cargar la predicción. ' ; } } Enter fullscreen mode Exit fullscreen mode Conclusión (Parte 2) ¡Hemos transformado los datos en bruto en una experiencia atractiva e interactiva! Al combinar el alojamiento estático de GitHub Pages o Netlify, JavaScript "vainilla" para la lógica, PapaParse.js para el manejo de CSV y Chart.js para visualizaciones hermosas, hemos construido un frontend potente que es a la vez gratuito y muy efectivo. El dashboard ahora proporciona información inmediata sobre los patrones climáticos históricos de cualquier ciudad seleccionada. Pero, ¿qué pasa con el futuro? En la tercera y última parte de esta serie , nos adentraremos en el emocionante mundo del Machine Learning para añadir una capa predictiva a nuestro servicio. Exploraremos cómo usar datos históricos para pronosticar el tiempo de mañana, convirtiendo nuestro servicio en un verdadero "oráculo" meteorológico. ¡No te lo pierdas! Referencias y Enlaces de Interés: Servicio Web Completo : Puedes ver el resultado final de este proyecto en acción aquí: https://datalaria.com/apps/weather/ Repositorio GitHub del Proyecto : Explora el código fuente y la estructura del proyecto en mi repositorio: https://github.com/Dalaez/app_weather PapaParse.js : Parser de CSV rápido en el navegador para JavaScript: https://www.papaparse.com/ Chart.js : Gráficos JavaScript simples pero flexibles para diseñadores y desarrolladores: https://www.chartjs.org/ GitHub Pages : Documentación oficial sobre cómo alojar tus sitios: https://docs.github.com/es/pages Netlify : Página oficial de Netlify: https://www.netlify.com/ Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Datalaria Follow More from Datalaria Weather Service Project (Part 2): Building the Interactive Frontend with GitHub Pages or Netlify and JavaScript # frontend # javascript # tutorial # webdev Weather Service Project (Part 1): Building the Data Collector with Python and GitHub Actions or Netlify # api # automation # python # tutorial Proyecto Weather Service (Parte 1): Construyendo el Recolector de Datos con Python y GitHub Actions o Netlify # dataengineering # python # spanish # tutorial 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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Report Abuse Daniel for Datalaria Posted on Jan 12 • Originally published at datalaria.com Weather Service Project (Part 1): Building the Data Collector with Python and GitHub Actions or Netlify # api # python # automation # tutorial As I mentioned in a previous post, one of my goals with Datalaria is to get my hands dirty with projects that allow me to learn and connect different technologies in the data world. Today, we begin a series dedicated to one of those projects: the creation of a complete global weather service , from data collection to visualization and prediction, all serverless and using free tools. In this first installment, we will focus on the heart of the system: the backend data collector . We'll see how to build a "robot" that works for us 24/7, connecting to an external API, saving structured information, and doing all this automatically and for free. Let's dive in! The First Step: Talking to the OpenWeatherMap API Every weather service needs a data source. I chose OpenWeatherMap for its popularity and generous free plan. The initial process is straightforward: Register : Create an account on their website. Get the API Key : Generate a unique key that will identify us in each call. It's like our "key" to access their data. Store the Key : Never directly in the code! We'll discuss this further below. With the key in hand (or almost!), I wrote a first test_clima.py script to test the connection using Python's fantastic requests library: import requests API_KEY = " YOUR_API_KEY_HERE " # Temporarily! We'll use Secrets later CITY = " Madrid " URL = f " [https://api.openweathermap.org/data/2.5/weather?q=](https://api.openweathermap.org/data/2.5/weather?q=) { CITY } &appid= { API_KEY } &units=metric&lang=es " try : response = requests . get ( URL ) response . raise_for_status () # Raises an exception for HTTP errors (4xx or 5xx) data = response . json () print ( f " Temperature in { CITY } : { data [ ' main ' ][ ' temp ' ] } °C " ) except requests . exceptions . RequestException as e : print ( f " Error connecting to the API: { e } " ) except KeyError as e : print ( f " Unexpected API response, key missing: { e } " ) Enter fullscreen mode Exit fullscreen mode First Obstacle Overcome (with Patience): When I first ran it, I got a 401 Unauthorized error! 😱 It turns out that OpenWeatherMap API Keys can take a few hours to activate after being generated. The lesson: sometimes, the solution is simply to wait. ⏳ The "Database": Why CSV and Not SQL? With data flowing, I needed to store it. I could have set up an SQL database (PostgreSQL, MySQL...), but that would involve complexity, a server (cost), and for this project, it was overkill. I opted for radical simplicity: CSV (Comma Separated Values) files . Advantages : Easy to read and write with Python, perfectly versionable with Git (we can track changes), and sufficient for the initial data volume we'd be handling. Key Logic : I needed to append a new row to each city's file daily, but only write the header ( date_time , city , temperature_c , etc.) the first time. Python's native csv library and os.path.exists make this trivial: import csv import os from datetime import datetime # ... (code to fetch API data for a city) ... now = datetime . now (). strftime ( ' %Y-%m-%d %H:%M:%S ' ) data_row = [ now , city , temperature , ...] # List with the data header = [ ' date_time ' , ' city ' , ' temperature_c ' , ...] # List with column names file_name = f " data/ { city } .csv " # We'll create a 'data' folder # Ensure the 'data' folder exists os . makedirs ( os . path . dirname ( file_name ), exist_ok = True ) is_new_file = not os . path . exists ( file_name ) try : with open ( file_name , mode = ' a ' , newline = '' , encoding = ' utf-8 ' ) as f : writer = csv . writer ( f ) if is_new_file : writer . writerow ( header ) # Write header ONLY if new file writer . writerow ( data_row ) # Append the new data row print ( f " Data saved for { city } " ) except IOError as e : print ( f " Error writing to { file_name } : { e } " ) Enter fullscreen mode Exit fullscreen mode The Automation Robot: GitHub Actions to the Rescue 🤖 Here comes the magic: how to make this script run daily without having a server constantly on? The answer is GitHub Actions , the automation engine integrated into GitHub. It's like having a small robot working for us for free. Security First: Never Upload Your API Key! The biggest mistake would be to upload registrar_clima.py with the API_KEY written directly in the code. Anyone could see it on GitHub. Solution : Use GitHub's Repository Secrets . Go to Settings > Secrets and variables > Actions in your GitHub repository. Create a new secret named OPENWEATHER_API_KEY and paste your key there. In your Python script, read the key securely using os.environ.get("OPENWEATHER_API_KEY") . The Robot's Brain: The .github/workflows/update-weather.yml File This YAML file tells GitHub Actions what to do and when: name : Daily Weather Data Update on : workflow_dispatch : # Allows manual triggering from GitHub push : branches : [ main ] # Triggers if changes are pushed to the main branch schedule : - cron : ' 0 6 * * *' # The key: triggers daily at 06:00 UTC jobs : update_data : runs-on : ubuntu-latest # Use a free Linux virtual machine steps : - name : Checkout repository code uses : actions/checkout@v4 # Downloads our code - name : Set up Python uses : actions/setup-python@v5 with : python-version : ' 3.10' # Or your preferred version - name : Install necessary dependencies run : pip install -r requirements.txt # Reads requirements.txt and installs requests, etc. - name : Execute data collection script run : python registrar_clima.py # Our main script! env : OPENWEATHER_API_KEY : ${{ secrets.OPENWEATHER_API_KEY }} # Securely injects the secret - name : Save new data to repository (Commit & Push) run : | git config user.name 'github-actions[bot]' # Identifies the 'bot' git config user.email 'github-actions[bot]@users.noreply.github.com' git add data/*.csv # Adds ONLY the modified CSV files in the 'data' folder # Check if there are changes before committing to avoid empty commits git diff --staged --quiet || git commit -m "Automated weather data update 🤖" git push # Pushes changes to the repository env : GITHUB_TOKEN : ${{ secrets.GITHUB_TOKEN }} # Automatic token to allow the push Enter fullscreen mode Exit fullscreen mode This last step is crucial! The Action itself acts as a user, performing git add , git commit , and git push of the CSV files that the Python script has just modified. This way, the updated data is saved in our repository every day. The Serverless Alternative: Deployment and Automation with Netlify 🚀 While GitHub Actions is a fantastic automation tool, for this project I decided to explore an alternative even more integrated with the "serverless" concept: Netlify . Netlify not only allows us to deploy our static frontend (like GitHub Pages) but also offers serverless functions and, crucially for our backend, scheduled functions (or Cron Jobs) . Deploying the Static Frontend with Netlify Connect Your Repository : The process is incredibly simple. Log in to Netlify, click "Add new site," and select "Import an existing project." Connect with your GitHub account and choose your Weather Service project repository. Basic Configuration : Netlify will automatically detect your project. Ensure that the "Build command" is empty (as it's a static site with no build process) and that the "Publish directory" is the root of your repository ( ./ ). Continuous Deployment : Netlify will automatically configure continuous deployment. Every time you git push to your main branch (or whichever branch you've configured), Netlify will rebuild and deploy your site. Automating the Backend with Netlify Functions (and Cron Jobs) This is where Netlify Serverless Functions shine for our data collector. Instead of a GitHub Actions workflow, we can use a Netlify function to run our Python script on a schedule: Project Structure : Create a netlify/functions/ folder at the root of your project. Inside, you can have a Python file like collect_weather.py . Dependency Management : You'll need a requirements.txt file at the root of your project for Netlify to install Python dependencies ( requests , pandas , scikit-learn ). netlify.toml Configuration : This file at your project's root is crucial for defining your functions and their schedules: [build] publish = "." # Directory where your index.html is located command = "" # No build command needed for a static site [functions] directory = "netlify/functions" # Where your functions are located node_bundler = "esbuild" # For JS/TS functions. Netlify will detect Python. [[edge_functions]] # For scheduling a function (requires Netlify Edge Functions) function = "collect_weather" # The name of your function (without the .py extension) path = "/.netlify/functions/collect_weather" # The function path (can be different) schedule = "@daily" # Or use a cron string like "0 6 * * *" The Python Function ( netlify/functions/collect_weather.py ) : This function will encapsulate the logic of your registrar_clima.py . Netlify will execute it in a Python environment. # netlify/functions/collect_weather.py import json import requests import os import time from datetime import datetime import csv # ... (all your registrar_clima.py script code goes here) ... # Ensure API_KEYs are read from os.environ # and that data is written directly to the repository using GitPython # or in a way that Netlify can persist changes. # **Important**: Netlify Functions are ephemeral. # To persist changes in the repo, you would need Git integration # similar to what GitHub Actions would do (using a Personal Access Token). # However, for a static frontend, the simplest approach is for this function # to only generate a predictions JSON and upload it to storage like S3, # or for the Python collection script to continue running on GitHub Actions # and Netlify only serve the frontend. # If the idea is for Netlify to ALSO commit, this is more complex # and would require a Git API or a PAT token from Netlify. def handler ( event , context ): # The main call to your data collection logic would go here # This is a simplified example try : # Your logic to fetch and save data, generate CSVs/JSONs # If you want this to commit to GitHub, you would need: # 1. A GitHub PAT token stored as an environment variable in Netlify. # 2. A library like GitPython to interact with Git. # It is more common for serverless functions to persist data in databases # or object storage services (e.g., S3), not in the Git repo itself. # For this project, the GitHub Actions approach for the backend # that directly commits to the repo is still simpler # for CSV storage. Netlify would be ideal for the frontend # and functions for real-time APIs or lightweight predictions. print ( " Netlify function for weather collection executed. " ) # If the function generates any JSON output for the frontend, it would return it here: # return { # "statusCode": 200, # "body": json.dumps({"message": "Data collection complete"}), # } return { " statusCode " : 200 , " body " : json . dumps ({ " message " : " Backend logic would run here. For data persistence in GitHub, GitHub Actions is more direct. " }), } except Exception as e : return { " statusCode " : 500 , " body " : json . dumps ({ " error " : str ( e )}), } Environment Variables in Netlify : For the OPENWEATHER_API_KEY , go to Site settings > Build & deploy > Environment variables and add your key there. Important Consideration : For the Netlify function to persist changes directly to your GitHub repository (like committing the CSVs), you would need a more advanced setup (such as using a GitHub Personal Access Token within the Netlify function to perform git push ), which is more complex. To maintain simplicity and direct storage in the Git repository with automatic CSV commits, the GitHub Actions solution remains the most straightforward and efficient for the data collector backend in this specific case . Netlify excels at frontend deployment and for functions that interact with external services or databases without committing to the main application's Git repository. In this project, we use GitHub Actions for the backend (collecting and committing CSVs) and Netlify for frontend deployment and potentially for lighter, real-time functions that don't need to modify the Git repo. This last step is crucial! The Action itself acts as a user, performing git add , git commit , and git push of the CSV files that the Python script has just modified. This way, the updated data is saved in our repository every day. The Scaling Problem (and the Necessary Architectural Pivot) My initial idea was to monitor about 1000 cities and store everything in a single weather_data.csv file. I did a quick calculation: 1000 cities * ~200 bytes/day * 365 days * 3 years... over 200 MB! 😱 Why is this a problem? Because the frontend (our dashboard, which we'll see in the next post) runs in the user's browser. It would have to download that entire 200 MB just to display the graph for one city. Totally unacceptable in terms of performance. 🐢 The Architectural Solution: Switch to a "one file per entity" strategy. We create a data/ folder. The registrar_clima.py script now generates (or appends data to) one CSV file per city: data/Madrid.csv , data/Leon.csv , data/Tokyo.csv , etc. This way, when the user wants to see the weather for Leon, the frontend will only download the data/Leon.csv file, which will be just a few kilobytes. Instant loading! ✨ Second Scaling Obstacle (API Limits): OpenWeatherMap, in its free plan, allows about 60 calls per minute. My loop to get data for 155 cities (my current list) would make these calls too quickly. Vital Solution: Add import time at the beginning of the Python script and time.sleep(1.1) at the end of the for city in cities: loop. This introduces a pause of slightly more than 1 second between each API call, ensuring we stay below the limit and avoid being blocked. 🚦 Conclusion (Part 1) We've got the foundation! We've built a robust and automated system that: Connects to an external API securely. Processes and stores historical data for multiple entities (cities). Runs daily, at no cost, thanks to GitHub Actions. Is designed to scale efficiently. In the next post, we'll put on our frontend developer hats and build the interactive dashboard that will allow any user to explore this data with dynamic graphs. Don't miss it! References and Links of Interest: Complete Web Service : See the live project in action here: https://datalaria.com/apps/weather/ Project GitHub Repository : Explore the source code and project structure: https://github.com/Dalaez/app_weather OpenWeatherMap : Weather API documentation: https://openweathermap.org/api Python Requests : Documentation for the HTTP requests library: https://requests.readthedocs.io/en/master/ GitHub Actions : Official GitHub Actions guide: https://docs.github.com/en/actions Netlify : Official Netlify website: https://www.netlify.com/ Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Datalaria Follow More from Datalaria Data Visualization - Basics # beginners # datascience # tutorial Visualizaciones básicas # tutorial # datascience # beginners # spanish 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . 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https://expressjs.com/ | Express - Node.js web application framework Getting started Installing Hello world Express generator Basic routing Static files More examples FAQ Guide Routing Writing middleware Using middleware Overriding the Express API Using template engines Error handling Debugging Express behind proxies Moving to Express 4 Moving to Express 5 Database integration API reference 5.x 4.x 3.x (deprecated) 2.x (deprecated) Advanced topics Building template engines Security updates Security best practices Performance best practices Health checks & shutdown Resources Community Glossary Middleware Utility modules Contributing to Express Release Change Log Support Blog Latest post All posts Write a Post English Français Deutsch Español Italiano 日本語 中文 (简体) 繁體中文 한국어 Português Express 5.2.1 Fast, unopinionated, minimalist web framework for Node.js $ npm install express --save const express = require ( ' express ' ) const app = express () const port = 3000 app . get ( ' / ' , ( req , res ) => { res . send ( ' Hello World! ' ) }) app . listen ( port , () => { console . log ( `Example app listening on port ${ port } ` ) }) [email protected] : Now the Default on npm with LTS Timeline Express 5.1.0 is now the default on npm, and we’re introducing an official LTS schedule for the v4 and v5 release lines. Check out our latest blog for more information. Web Applications Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. APIs With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy. Performance Express provides a thin layer of fundamental web application features, without obscuring Node.js features that you know and love. Middleware Express is a lightweight and flexible routing framework with minimal core features meant to be augmented through the use of Express middleware modules. Terms of Use Privacy Policy Code of Conduct Trademark Policy Security Policy | 2026-01-13T08:49:12 |
https://www.oshwa.org/announcements/oshwas-new-open-healthware-certification-how-we-got-here-and-where-were/ | OSHWA’s New Open Healthware Certification: How We Got Here and Where We’re Going | OSHWA menu menu chevron_left home About Team Programs Community Membership Events OSHW 101 Documents and Policies Resources Announcements January 9, 2026 OSHWA’s New Open Healthware Certification: How We Got Here and Where We’re Going Yves Nazon II Over the past year, OSHWA has been working toward a dedicated certification pathway for open source health and medical hardware, otherwise known as an Open Healthware certification. Today, we’re excited to share the story behind the Open Healthware Certification—why it exists, how it was created, and what comes next. What Did We Do? In short, we created a new healthware certification that builds upon the existing open hardware certification. More specifically, we developed the Open Healthware Certification to address the unique challenges and responsibilities associated with health and medical technologies. It was determined by our participants that a more robust source was necessary to share for Open Healthware than standard open source hardware. This certification is designed to help people make informed choices, through the creation of a project based database that focuses on strong documentation, replicability, and transparency—qualities that are especially critical when hardware directly impacts people’s health and safety. Community elements most commonly asked for in a Health label of the Open Hardware Certification is including the BOM in source documents as well as the intent of use. Those pieces of source will be required in the certification. Other pieces of source, such as a hardware’s legacy plan, QMS testing data, and sterilization plans are required if a creator were to have them. Since we are dealing with a broad swath of health hardware, from band-aids to implantable devices, our community is requesting a flexible certification that can cover all device classes and types. The full list of items that are included in the new Open Healthware certification can be found below: General Open Healthware Source: Intended use case: Please describe the intended situation(s) of use or use case for this project Target group: Please describe the intended group of impact for your project and the classification of your project Risk class, and region-specific compliance expectations reference document (FDA, CE, etc.) Include state of development aka regulatory intent (e.g: research or end user/product grade device/project) Critical Design Thinking Notes: Please provide a repository link to documentation about project critical design notes / Useful/important information (E.g: Notes about materials that cannot be replaced, necessary orientation of 3D prints to ensure project success, etc.) BOM (bill of materials): Provide a link to the bill of materials (BOM) for this project including manufacturer and manufacturer part number Testing data / Testing Verification: Please provide link that shows what your project should be outputting or doing, if made correctly Risk assessment / Analysis: Please provide link estimating, assessing, and plans for mitigating the risks and potential points of failure of your project, including: Adverse outcomes disclaimer Open issues Assembly manual for project: Please provide a link to the manual or tutorial for how to construct your project. If your project is not a single use product (e.g. needle, bandaid, etc.) then maintenance documentation is also required Conditionally Applicable Open Healthware Source (if you have it): QMS Documentation Hardware Legacy Plan Sterilization Plan Regulatory body approval application (ex: FDA, CE, etc) Usage guidelines and warnings Disclosure of Conflicts While we don’t want to force all creators to include all these pieces of source, the conclusion was a separate certification form with more source necessary for health related hardware. The current certification is always available for creators outside health, or those who would rather not have their hardware labeled in the health category. Why Did We Do It? The motivation came from our community but was actualized because of government funding. The COVID 19 pandemic first highlighted the integral role that open source hardware could play in providing others with accessible, life saving technologies and localized manufacturing. From there, years of conversations and informal feedback reinforced the fact that open source medical and health projects needed clear guidance and shared expectations—without compromising the values of openness and accessibility. As a result of this newly articulated community call to action, we were able to receive support from the National Science Foundation (NSF) through a POSE phase 2 grant . This funding gave us the opportunity to move beyond informal discussions and into a structured, community-informed process to design a certification that reflects real-world practices and concerns. How Did We Do It? We grounded the development of the Open Healthware Certification in community input. This took several forms: Workshops: Numerous participants discussed what makes health-related open hardware trustworthy and usable through a series of virtual and in person workshops. The workshops transformed theories into tangible takeaways and from the valuable insights gained in these workshops, we were able to shape the building blocks of the Open Healthware certification. Highlights, summaries, and key takeaways of each workshop can be found here: WS I WS II WS III WS IV Survey data: We distributed a survey to participants across the globe and received responses from nine countries. From these responses we were able to gather demographic information, validate emerging insights about Open Healthware, and understand priorities for its future. A dedicated section focused on the development of a new Open Healthware standard, where respondents identified what they felt was essential to include. Criteria that received at least 66% agreement were incorporated into the final version of the standard, as long as it met the criteria of adhering to source. We want to continuously recognize that there are standards bodies already available for safety, and OSHWA does not purport to weigh in on safety. Internal Team Meetings: Over several months, our team met regularly to reflect on insights from a wide range of healthware interactions—from informal conversations to our first annual Open Healthware Conference. Guided by workshop discussions and survey data, we worked to design a certification process that is both globally relevant and widely applicable. We recognize that people engage in open source hardware for many reasons including education, innovation, access, activism, and personal need. While all of these motivations are valid, our discussions—and the data itself—consistently pointed to documentation and replicability as foundational. We found that strong documentation enables accurate replication and empowers others to understand, build, evaluate, and safely improve health-related open source hardware. Who Was Involved? This effort was overseen by OSHWA’s Healthware team, Yves Nazon II, Avinash Baskaran, Joey Castillo, Herine Palacios, Lecia Ductan, and OSHWA’s executive director Alicia Seidle. We also received valuable support from Michael Weinberg of NYU Law, and Christopher Wong from the creative firm Objectively, who helped refine and translate the ideas we received into a tangible product. Most importantly, this process was led and guided by the OSHWA community! We thank you for your constant and consistent engagement throughout this process! Members from the community included current open hardware certified projects; health and medical hardware developers, engineers, and manufacturers; researchers, open hardware health and medical companies, and clinicians and staff at hospitals and clinics. If you are interested in helping refine the new Open Healthware certification by participating in activities associated with Year 2 of the POSE grant, please fill out this survey . When Did This Happen? Formally, work on the certification began in September 2024. In reality, it builds on data and insights we’ve been gathering throughout the years, culminating with the OSHWA workshops and community events of 2025. The certification is the result of sustained listening, iteration, and reflection—not a single moment or meeting. What’s Next? We’re now preparing to roll out a skeleton version of the Open Healthware Certification website , which we refer to as a wireframe . A wireframe is essentially a visual and functional mock-up that looks and feels like the website and allows you to navigate through what the certification experience will be like. Within this wireframe, you’ll be able to see a full draft version of the Open Healthware Certification, including the actual questions projects will be asked to answer. And most importantly, we want your feedback. Examples of potential feedback: “The certification should ask about ___ because it would clarify ___.” “The certification is missing ___, and adding it would improve ___.” “Question 5 feels unnecessary or redundant.” We are planning to host a community session on January 22nd to gather feedback on wireframes and walk through the certification together. If you are interested in participating with this community session or other activities associated with Year 2, please fill out this survey . This certification exists because of the OSHWA community, and it will only improve with your continued input. We’re looking forward to shaping the future of Open Healthware together. Become a Member Donate Newsletter | 2026-01-13T08:49:12 |
https://reactjs.org/blog/2019/02/06/react-v16.8.0.html#installation | React v16.8: The One With Hooks – React Blog We want to hear from you! Take our 2021 Community Survey! This site is no longer updated. Go to react.dev React Docs Tutorial Blog Community v 18.2.0 Languages GitHub React v16.8: The One With Hooks February 06, 2019 by Dan Abramov This blog site has been archived. Go to react.dev/blog to see the recent posts. With React 16.8, React Hooks are available in a stable release! What Are Hooks? Hooks let you use state and other React features without writing a class. You can also build your own Hooks to share reusable stateful logic between components. If you’ve never heard of Hooks before, you might find these resources interesting: Introducing Hooks explains why we’re adding Hooks to React. Hooks at a Glance is a fast-paced overview of the built-in Hooks. Building Your Own Hooks demonstrates code reuse with custom Hooks. Making Sense of React Hooks explores the new possibilities unlocked by Hooks. useHooks.com showcases community-maintained Hooks recipes and demos. You don’t have to learn Hooks right now. Hooks have no breaking changes, and we have no plans to remove classes from React. The Hooks FAQ describes the gradual adoption strategy. No Big Rewrites We don’t recommend rewriting your existing applications to use Hooks overnight. Instead, try using Hooks in some of the new components, and let us know what you think. Code using Hooks will work side by side with existing code using classes. Can I Use Hooks Today? Yes! Starting with 16.8.0, React includes a stable implementation of React Hooks for: React DOM React DOM Server React Test Renderer React Shallow Renderer Note that to enable Hooks, all React packages need to be 16.8.0 or higher . Hooks won’t work if you forget to update, for example, React DOM. React Native will support Hooks in the 0.59 release . Tooling Support React Hooks are now supported by React DevTools. They are also supported in the latest Flow and TypeScript definitions for React. We strongly recommend enabling a new lint rule called eslint-plugin-react-hooks to enforce best practices with Hooks. It will soon be included into Create React App by default. What’s Next We described our plan for the next months in the recently published React Roadmap . Note that React Hooks don’t cover all use cases for classes yet but they’re very close . Currently, only getSnapshotBeforeUpdate() and componentDidCatch() methods don’t have equivalent Hooks APIs, and these lifecycles are relatively uncommon. If you want, you should be able to use Hooks in most of the new code you’re writing. Even while Hooks were in alpha, the React community created many interesting examples and recipes using Hooks for animations, forms, subscriptions, integrating with other libraries, and so on. We’re excited about Hooks because they make code reuse easier, helping you write your components in a simpler way and make great user experiences. We can’t wait to see what you’ll create next! Testing Hooks We have added a new API called ReactTestUtils.act() in this release. It ensures that the behavior in your tests matches what happens in the browser more closely. We recommend to wrap any code rendering and triggering updates to your components into act() calls. Testing libraries can also wrap their APIs with it (for example, react-testing-library ’s render and fireEvent utilities do this). For example, the counter example from this page can be tested like this: import React from 'react' ; import ReactDOM from 'react-dom' ; import { act } from 'react-dom/test-utils' ; import Counter from './Counter' ; let container ; beforeEach ( ( ) => { container = document . createElement ( 'div' ) ; document . body . appendChild ( container ) ; } ) ; afterEach ( ( ) => { document . body . removeChild ( container ) ; container = null ; } ) ; it ( 'can render and update a counter' , ( ) => { // Test first render and effect act ( ( ) => { ReactDOM . render ( < Counter /> , container ) ; } ) ; const button = container . querySelector ( 'button' ) ; const label = container . querySelector ( 'p' ) ; expect ( label . textContent ) . toBe ( 'You clicked 0 times' ) ; expect ( document . title ) . toBe ( 'You clicked 0 times' ) ; // Test second render and effect act ( ( ) => { button . dispatchEvent ( new MouseEvent ( 'click' , { bubbles : true } ) ) ; } ) ; expect ( label . textContent ) . toBe ( 'You clicked 1 times' ) ; expect ( document . title ) . toBe ( 'You clicked 1 times' ) ; } ) ; The calls to act() will also flush the effects inside of them. If you need to test a custom Hook, you can do so by creating a component in your test, and using your Hook from it. Then you can test the component you wrote. To reduce the boilerplate, we recommend using react-testing-library which is designed to encourage writing tests that use your components as the end users do. Thanks We’d like to thank everybody who commented on the Hooks RFC for sharing their feedback. We’ve read all of your comments and made some adjustments to the final API based on them. Installation React React v16.8.0 is available on the npm registry. To install React 16 with Yarn, run: yarn add react@^16.8.0 react-dom@^16.8.0 To install React 16 with npm, run: npm install --save react@^16.8.0 react-dom@^16.8.0 We also provide UMD builds of React via a CDN: < script crossorigin src = " https://unpkg.com/react@16/umd/react.production.min.js " > </ script > < script crossorigin src = " https://unpkg.com/react-dom@16/umd/react-dom.production.min.js " > </ script > Refer to the documentation for detailed installation instructions . ESLint Plugin for React Hooks Note As mentioned above, we strongly recommend using the eslint-plugin-react-hooks lint rule. If you’re using Create React App, instead of manually configuring ESLint you can wait for the next version of react-scripts which will come out shortly and will include this rule. Assuming you already have ESLint installed, run: # npm npm install eslint-plugin-react-hooks --save-dev # yarn yarn add eslint-plugin-react-hooks --dev Then add it to your ESLint configuration: { "plugins" : [ // ... "react-hooks" ] , "rules" : { // ... "react-hooks/rules-of-hooks" : "error" } } Changelog React Add Hooks — a way to use state and other React features without writing a class. ( @acdlite et al. in #13968 ) Improve the useReducer Hook lazy initialization API. ( @acdlite in #14723 ) React DOM Bail out of rendering on identical values for useState and useReducer Hooks. ( @acdlite in #14569 ) Don’t compare the first argument passed to useEffect / useMemo / useCallback Hooks. ( @acdlite in #14594 ) Use Object.is algorithm for comparing useState and useReducer values. ( @Jessidhia in #14752 ) Support synchronous thenables passed to React.lazy() . ( @gaearon in #14626 ) Render components with Hooks twice in Strict Mode (DEV-only) to match class behavior. ( @gaearon in #14654 ) Warn about mismatching Hook order in development. ( @threepointone in #14585 and @acdlite in #14591 ) Effect clean-up functions must return either undefined or a function. All other values, including null , are not allowed. @acdlite in #14119 React Test Renderer Support Hooks in the shallow renderer. ( @trueadm in #14567 ) Fix wrong state in shouldComponentUpdate in the presence of getDerivedStateFromProps for Shallow Renderer. ( @chenesan in #14613 ) Add ReactTestRenderer.act() and ReactTestUtils.act() for batching updates so that tests more closely match real behavior. ( @threepointone in #14744 ) ESLint Plugin: React Hooks Initial release . ( @calebmer in #13968 ) Fix reporting after encountering a loop. ( @calebmer and @Yurickh in #14661 ) Don’t consider throwing to be a rule violation. ( @sophiebits in #14040 ) Hooks Changelog Since Alpha Versions The above changelog contains all notable changes since our last stable release (16.7.0). As with all our minor releases , none of the changes break backwards compatibility. If you’re currently using Hooks from an alpha build of React, note that this release does contain some small breaking changes to Hooks. We don’t recommend depending on alphas in production code. We publish them so we can make changes in response to community feedback before the API is stable. Here are all breaking changes to Hooks that have been made since the first alpha release: Remove useMutationEffect . ( @sophiebits in #14336 ) Rename useImperativeMethods to useImperativeHandle . ( @threepointone in #14565 ) Bail out of rendering on identical values for useState and useReducer Hooks. ( @acdlite in #14569 ) Don’t compare the first argument passed to useEffect / useMemo / useCallback Hooks. ( @acdlite in #14594 ) Use Object.is algorithm for comparing useState and useReducer values. ( @Jessidhia in #14752 ) Render components with Hooks twice in Strict Mode (DEV-only). ( @gaearon in #14654 ) Improve the useReducer Hook lazy initialization API. ( @acdlite in #14723 ) Is this page useful? Edit this page Recent Posts React Labs: What We've Been Working On – June 2022 React v18.0 How to Upgrade to React 18 React Conf 2021 Recap The Plan for React 18 Introducing Zero-Bundle-Size React Server Components React v17.0 Introducing the New JSX Transform React v17.0 Release Candidate: No New Features React v16.13.0 All posts ... Docs Installation Main Concepts Advanced Guides API Reference Hooks Testing Contributing FAQ Channels GitHub Stack Overflow Discussion Forums Reactiflux Chat DEV Community Facebook Twitter Community Code of Conduct Community Resources More Tutorial Blog Acknowledgements React Native Privacy Terms Copyright © 2025 Meta Platforms, Inc. | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Testing Follow Hide Find those bugs before your users do! 🐛 Create Post Older #testing posts 7 8 9 10 11 12 13 14 15 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu From Swagger to Tests: Building an AI-Powered API Test Generator with Python Alicia Marianne 🇧🇷 Alicia Marianne 🇧🇷 Alicia Marianne 🇧🇷 Follow Jan 3 From Swagger to Tests: Building an AI-Powered API Test Generator with Python # python # ai # api # testing 78 reactions Comments 7 comments 4 min read Common Manual Testing Techniques NandithaShri S.k NandithaShri S.k NandithaShri S.k Follow Dec 9 '25 Common Manual Testing Techniques # beginners # learning # testing Comments Add Comment 2 min read 🚀 The Future of Information Retrieval (IR) — Looking for Testers & Feedback Constantin Constantin Constantin Follow Dec 8 '25 🚀 The Future of Information Retrieval (IR) — Looking for Testers & Feedback # productivity # python # opensource # testing Comments Add Comment 2 min read Beyond the Black Box: Visualizing Autonomous Intelligence with Starlight Mission Control Dhiraj Das Dhiraj Das Dhiraj Das Follow Jan 1 Beyond the Black Box: Visualizing Autonomous Intelligence with Starlight Mission Control # python # automation # testing 5 reactions Comments Add Comment 3 min read How to use System prompts as Ground Truth for Evaluation shashank agarwal shashank agarwal shashank agarwal Follow Dec 10 '25 How to use System prompts as Ground Truth for Evaluation # testing # agents # llm # ai 1 reaction Comments Add Comment 1 min read TWD 1.3.x release - Multiple framework support Kevin Julián Martínez Escobar Kevin Julián Martínez Escobar Kevin Julián Martínez Escobar Follow Dec 8 '25 TWD 1.3.x release - Multiple framework support # tutorial # react # twd # testing Comments Add Comment 3 min read QA Automation Tools That Actually Work: 2026 Edition for Dev Teams Sannivas Sannivas Sannivas Follow Dec 8 '25 QA Automation Tools That Actually Work: 2026 Edition for Dev Teams # qa # testing # automation # ai Comments Add Comment 5 min read Continuous Journey through Dagster - bugs and testing Steven Hur Steven Hur Steven Hur Follow Dec 9 '25 Continuous Journey through Dagster - bugs and testing # aws # opensource # testing 2 reactions Comments Add Comment 2 min read Agent Factory Recap: A Deep Dive into Agent Evaluation, Practical Tooling, and Multi-Agent Systems Qingyue Wang Qingyue Wang Qingyue Wang Follow for Google AI Jan 8 Agent Factory Recap: A Deep Dive into Agent Evaluation, Practical Tooling, and Multi-Agent Systems # vertexai # agents # testing # ai 30 reactions Comments Add Comment 8 min read Manual testing techniques arunsakthivel31 arunsakthivel31 arunsakthivel31 Follow Dec 8 '25 Manual testing techniques # beginners # testing # tutorial Comments Add Comment 2 min read Stop Waiting for a Breach. Let This Open-Source AI Agent Hack You First inboryn inboryn inboryn Follow Dec 7 '25 Stop Waiting for a Breach. Let This Open-Source AI Agent Hack You First # testing # devops # security # agents Comments Add Comment 2 min read Demystifying Agentic Test Automation for QA Teams John Vester John Vester John Vester Follow Dec 10 '25 Demystifying Agentic Test Automation for QA Teams # ai # llm # testing # programming 1 reaction Comments Add Comment 5 min read Understanding the React Testing Pipeline (for Beginners) Sheikh Limon Sheikh Limon Sheikh Limon Follow Dec 6 '25 Understanding the React Testing Pipeline (for Beginners) # react # testing # tdd # beginners Comments Add Comment 2 min read Tesla is smarter than ever now Vishal Thakkar Vishal Thakkar Vishal Thakkar Follow Dec 29 '25 Tesla is smarter than ever now # ai # testing # futurechallenge Comments Add Comment 1 min read SwiftUI Testing (Unit, UI & Async Tests) Sebastien Lato Sebastien Lato Sebastien Lato Follow Dec 5 '25 SwiftUI Testing (Unit, UI & Async Tests) # swiftui # testing # unittests # uitests Comments Add Comment 3 min read Announcing pytest-test-categories v1.1.0: Bring Google Testing Philosophy to Python Mike Lane Mike Lane Mike Lane Follow Dec 4 '25 Announcing pytest-test-categories v1.1.0: Bring Google Testing Philosophy to Python # python # testing # pytest # opensource Comments Add Comment 3 min read TDD + React Testing Pipeline — A Simple Example for Beginners Sheikh Limon Sheikh Limon Sheikh Limon Follow Dec 4 '25 TDD + React Testing Pipeline — A Simple Example for Beginners # react # testing # tdd # beginners Comments Add Comment 2 min read Manual testing. resaba resaba resaba Follow Dec 6 '25 Manual testing. # testing # manualtesting Comments Add Comment 3 min read What is performance engineering: A Gatling take Gatling.io Gatling.io Gatling.io Follow Dec 4 '25 What is performance engineering: A Gatling take # performance # sre # testing Comments Add Comment 8 min read Boost React TypeScript Test Coverage Without Slowing Down Fedar Haponenka Fedar Haponenka Fedar Haponenka Follow Dec 5 '25 Boost React TypeScript Test Coverage Without Slowing Down # react # productivity # testing # typescript Comments Add Comment 2 min read Building SpecSync: How I Extended Kiro with Custom MCP Tools Chrysostomos Koumides Chrysostomos Koumides Chrysostomos Koumides Follow Dec 5 '25 Building SpecSync: How I Extended Kiro with Custom MCP Tools # kiro # mcp # api # testing Comments Add Comment 2 min read Comparative Analysis of Test Management Tools: Real Integration with CI/CD Pipelines Royser Alonsso Villanueva Mamani Royser Alonsso Villanueva Mamani Royser Alonsso Villanueva Mamani Follow Dec 5 '25 Comparative Analysis of Test Management Tools: Real Integration with CI/CD Pipelines # testing # cicd # devops # tooling Comments 2 comments 6 min read Discover Qtktest.com: A Comprehensive Hub for AI Tools and Testing Resources qi yimi qi yimi qi yimi Follow Dec 6 '25 Discover Qtktest.com: A Comprehensive Hub for AI Tools and Testing Resources # showdev # javascript # webdev # testing Comments Add Comment 3 min read Component Testing vs. Unit Testing: Key Differences Matt Calder Matt Calder Matt Calder Follow Dec 8 '25 Component Testing vs. Unit Testing: Key Differences # testing # selenium # unittest # cicd Comments Add Comment 5 min read Playwright Visual Testing: Why Passing Tests Still Ship Broken UI TestDino TestDino TestDino Follow Dec 27 '25 Playwright Visual Testing: Why Passing Tests Still Ship Broken UI # playwright # testing # ai # software Comments Add Comment 4 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Performance Follow Hide Tag for content related to software performance. Create Post submission guidelines Articles should be obviously related to software performance in some way. Possible topics include, but are not limited to: Performance Testing Performance Analysis Optimising for performance Scalability Resilience But most of all, be kind and humble. 💜 Older #performance posts 69 70 71 72 73 74 75 76 77 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu ⚡ React Performance: How to Optimize Your Components for Lightning Speed Manu Kumar Pal Manu Kumar Pal Manu Kumar Pal Follow Jul 1 '25 ⚡ React Performance: How to Optimize Your Components for Lightning Speed # webdev # performance # react # frontend 1 reaction Comments Add Comment 2 min read 🧰 Tech Support Series: Fixing a Slow Windows PC AbdulGoniyy Adeleke Dare AbdulGoniyy Adeleke Dare AbdulGoniyy Adeleke Dare Follow Jul 5 '25 🧰 Tech Support Series: Fixing a Slow Windows PC # windows # troubleshooting # performance # itsupport Comments 1 comment 4 min read Reusing SVG Icons for Faster Pages Javier Eguiluz Javier Eguiluz Javier Eguiluz Follow Jun 30 '25 Reusing SVG Icons for Faster Pages # svg # performance # design # web 11 reactions Comments Add Comment 6 min read PostgreSQL + Outbox Pattern Revamped — Part 2 Sadeq Dousti Sadeq Dousti Sadeq Dousti Follow Jun 29 '25 PostgreSQL + Outbox Pattern Revamped — Part 2 # outbox # postgres # performance # incidents 5 reactions Comments Add Comment 18 min read 🔥 Shrink Your Flutter App Size by 60% — Pro Techniques to Build Leaner, Faster APKs (2025) Alex Codex Alex Codex Alex Codex Follow Jun 19 '25 🔥 Shrink Your Flutter App Size by 60% — Pro Techniques to Build Leaner, Faster APKs (2025) # flutter # dart # android # performance Comments Add Comment 1 min read 🔍 Deep Dive into useMemo in React.js: Optimize Performance Like a Pro WebTechnology Tutorials WebTechnology Tutorials WebTechnology Tutorials Follow Jun 29 '25 🔍 Deep Dive into useMemo in React.js: Optimize Performance Like a Pro # react # javascript # performance # reacthooks 1 reaction Comments Add Comment 2 min read Efficient Reporting: Query Caching and Big Data Report Generation with Queues Tahsin Abrar Tahsin Abrar Tahsin Abrar Follow Jun 28 '25 Efficient Reporting: Query Caching and Big Data Report Generation with Queues # laravel # php # backend # performance 6 reactions Comments Add Comment 3 min read Make Your Next.js App Fly: Performance Hacks That Work lokesh sunhare lokesh sunhare lokesh sunhare Follow Jun 27 '25 Make Your Next.js App Fly: Performance Hacks That Work # programming # performance # nextjs # react 2 reactions Comments 2 comments 4 min read The Mad SEO: Your Manifesto for Unconventional SEO Mastery Sajjad akbari Sajjad akbari Sajjad akbari Follow May 23 '25 The Mad SEO: Your Manifesto for Unconventional SEO Mastery # seo # machinelearning # performance # programming Comments Add Comment 8 min read Why Your App is Eating Memory Like a Hungry Teenager: A Real Talk About Garbage Collection 🗑️ Sahil Jadhav Sahil Jadhav Sahil Jadhav Follow Jun 15 '25 Why Your App is Eating Memory Like a Hungry Teenager: A Real Talk About Garbage Collection 🗑️ # dotnet # csharp # performance # learning 2 reactions Comments Add Comment 4 min read AVIF Support in Drupal 11: A Small Tweak, Big Performance Win nexgismo nexgismo nexgismo Follow Jun 26 '25 AVIF Support in Drupal 11: A Small Tweak, Big Performance Win # drupal # images # performance # webdev 3 reactions Comments Add Comment 2 min read Load Test CPU Comparison of Popular WordPress Caching Plugins Andrei Alba Andrei Alba Andrei Alba Follow Jun 26 '25 Load Test CPU Comparison of Popular WordPress Caching Plugins # wordpress # performance # cpu Comments Add Comment 3 min read Animation vs Transition: Which one will kill your performance first? 🔥 Dmitrii Zakharov Dmitrii Zakharov Dmitrii Zakharov Follow Jun 25 '25 Animation vs Transition: Which one will kill your performance first? 🔥 # css # performance # testing # browser 2 reactions Comments 1 comment 3 min read Implementing a CDN in Your React App in 3 Simple Steps saijami saijami saijami Follow Jun 25 '25 Implementing a CDN in Your React App in 3 Simple Steps # cdn # react # webdev # performance 1 reaction Comments Add Comment 2 min read How to Use Web Workers, Service Workers, and the Scheduler API in JavaScript (2025 Guide) Muhaymin Bin Mehmood Muhaymin Bin Mehmood Muhaymin Bin Mehmood Follow Jun 23 '25 How to Use Web Workers, Service Workers, and the Scheduler API in JavaScript (2025 Guide) # javascript # webdev # performance # serviceworkers 6 reactions Comments 3 comments 1 min read 🚀 7 JavaScript Performance Tricks Most Developers Don’t Use (But Should) Yassine Belmahfoud Yassine Belmahfoud Yassine Belmahfoud Follow Jun 23 '25 🚀 7 JavaScript Performance Tricks Most Developers Don’t Use (But Should) # javascript # performance # frontend # webdev 1 reaction Comments Add Comment 2 min read faster $lookup after $group in MongoDB aggregation pipeline (Performance Optimization Tips) Franck Pachot Franck Pachot Franck Pachot Follow for MongoDB Jun 22 '25 faster $lookup after $group in MongoDB aggregation pipeline (Performance Optimization Tips) # mongodb # lookup # join # performance 1 reaction Comments Add Comment 2 min read C# Memory Spans and Performance-Critical Code Maria Maria Maria Follow Jun 22 '25 C# Memory Spans and Performance-Critical Code # csharp # span # memory # performance 2 reactions Comments Add Comment 4 min read CPU Pipelining: How Modern Processors Execute Instructions Faster Sachin Tolay Sachin Tolay Sachin Tolay Follow Jun 22 '25 CPU Pipelining: How Modern Processors Execute Instructions Faster # programming # cpu # tutorial # performance 2 reactions Comments 1 comment 5 min read How Layered Memoization in Nucleux v1.3.0 Eliminates React's Biggest Performance Pitfall Marty Roque Marty Roque Marty Roque Follow Jun 22 '25 How Layered Memoization in Nucleux v1.3.0 Eliminates React's Biggest Performance Pitfall # react # memoization # reactjsdevelopment # performance Comments Add Comment 3 min read The Honest Truth About Scaling at Big Tech Ramya Boorugula Ramya Boorugula Ramya Boorugula Follow Jun 11 '25 The Honest Truth About Scaling at Big Tech # architecture # performance # distributedsystems # microservices 1 reaction Comments 1 comment 9 min read Microsoft 365 Business Standard Security and Productivity Features: What You Get in 2025 Roshan karki Roshan karki Roshan karki Follow Jun 25 '25 Microsoft 365 Business Standard Security and Productivity Features: What You Get in 2025 # microsoft # security # productivity # performance Comments 1 comment 5 min read N+1 Query Problem Jayant Jayant Jayant Follow Jun 21 '25 N+1 Query Problem # database # performance # sql # bestpractices 8 reactions Comments Add Comment 1 min read V8 fast-property in Object ccsunny ccsunny ccsunny Follow May 18 '25 V8 fast-property in Object # javascript # performance # node Comments Add Comment 1 min read Improve Table Speed in React by Using Web Workers for Filters Ravgeet Dhillon Ravgeet Dhillon Ravgeet Dhillon Follow Jun 21 '25 Improve Table Speed in React by Using Web Workers for Filters # generalprogramming # webdev # performance # react Comments Add Comment 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/datalaria/proyecto-weather-service-parte-2-construyendo-el-frontend-interactivo-con-github-pages-o-netlify-3oc0#2-reacci%C3%B3n-a-la-selecci%C3%B3n-del-usuario | Proyecto Weather Service (Parte 2): Construyendo el Frontend Interactivo con GitHub Pages o Netlify y JavaScript - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Daniel for Datalaria Posted on Jan 13 • Originally published at datalaria.com Proyecto Weather Service (Parte 2): Construyendo el Frontend Interactivo con GitHub Pages o Netlify y JavaScript # frontend # javascript # spanish # tutorial En la primera parte de esta serie , sentamos las bases de nuestro servicio meteorológico global. Construimos un script de Python para obtener datos del clima de OpenWeatherMap, los almacenamos eficientemente en ficheros CSV separados por ciudad y automatizamos todo el proceso de recolección utilizando GitHub Actions. Nuestro "robot" está diligentemente recopilando datos 24/7. Pero, ¿de qué sirven los datos si no puedes verlos? Hoy, cambiamos nuestro enfoque al frontend : la construcción de un dashboard interactivo y fácil de usar que permita a cualquiera explorar los datos meteorológicos que hemos recopilado. Aprovecharemos el poder del alojamiento de sitios estáticos con GitHub Pages o Netlify , utilizaremos JavaScript "vainilla" para darle vida y nos apoyaremos en algunas excelentes librerías para el manejo y la visualización de datos. ¡Hagamos que nuestros datos brillen! Alojamiento Web Gratuito: GitHub Pages vs. Netlify El primer obstáculo para cualquier proyecto web es el alojamiento. Los servidores tradicionales pueden ser costosos y complejos de gestionar. Siguiendo nuestra filosofía "serverless y gratis", tanto GitHub Pages como Netlify son soluciones perfectas para alojar sitios web estáticos directamente desde tu repositorio de GitHub. Opción 1: GitHub Pages Permite alojar sitios web estáticos directamente desde tu repositorio de GitHub. La activación es trivial: Ve a Settings > Pages en tu repositorio. Selecciona tu rama main (o la rama que contenga tu contenido web) como fuente. Elige la carpeta /root (o una carpeta /docs si lo prefieres) como la ubicación de tus archivos web. Haz clic en Save . Y así, tu archivo index.html (y cualquier recurso vinculado) se vuelve accesible públicamente en una URL como https://tu-usuario.github.io/tu-nombre-de-repositorio/ . ¡Sencillo, efectivo y gratuito! 🚀 Opción 2: Netlify (¡la elección final para este proyecto!) Para este proyecto, finalmente he optado por Netlify por su flexibilidad, la facilidad para gestionar dominios personalizados y su integración con el despliegue continuo. Además, me permite alojar el proyecto directamente bajo mi dominio de Datalaria ( https://datalaria.com/apps/weather/ ). Pasos para desplegar en Netlify: Conectar tu Repositorio : Inicia sesión en Netlify. Haz clic en "Add new site" y luego en "Import an existing project". Conecta tu cuenta de GitHub y selecciona el repositorio de tu proyecto Weather Service. Configuración de Despliegue : Owner : Tu cuenta de GitHub. Branch to deploy : main (o la rama donde tengas tu código frontend). Base directory : Deja esto vacío si tu index.html y assets están en la raíz del repositorio, o especifica una subcarpeta si es el caso (ej., /frontend ). Build command : Déjalo vacío, ya que nuestro frontend es puramente estático sin necesidad de un paso de build (sin frameworks como React/Vue). Publish directory : . (o la subcarpeta que contenga tus archivos estáticos, ej., /frontend ). Desplegar Sitio : Haz clic en "Deploy site". Netlify tomará tu repositorio, lo desplegará y te proporcionará una URL aleatoria. Dominio Personalizado (Opcional pero recomendado) : Para usar un dominio como datalaria.com/apps/weather/ : Ve a Site settings > Domain management > Domains > Add a custom domain . Sigue los pasos para añadir tu dominio y configurarlo con los DNS de tu proveedor (añadiendo registros CNAME o A ). Para la ruta específica ( /apps/weather/ ), necesitarás configurar una "subcarpeta" o "base URL" en tu aplicación si no está directamente en la raíz del dominio. En este caso, nuestro index.html está diseñado para ser servido desde una subruta. Netlify gestiona esto de forma transparente una vez que el sitio está desplegado y tu dominio configurado. ¡Así de sencillo! Cada git push a tu rama configurada activará un nuevo despliegue en Netlify, manteniendo tu dashboard siempre actualizado. La Pila Tecnológica del Frontend: HTML, CSS y JavaScript (con una pequeña ayuda) Para este dashboard, opté por un enfoque ligero: HTML puro para la estructura, un poco de CSS para los estilos y JavaScript "vainilla" (sin frameworks complejos) para la interactividad. Para manejar tareas específicas, incorporé dos librerías fantásticas: PapaParse.js : El mejor parser de CSV del lado del cliente para el navegador. Es el puente entre nuestros archivos CSV en bruto y las estructuras de datos de JavaScript que necesitamos para la visualización. Chart.js : Una potente y flexible librería de gráficos JavaScript que facilita enormemente la creación de gráficos bonitos, responsivos e interactivos. La Lógica del Dashboard: Dando Vida a los Datos en index.html Nuestro index.html actúa como el lienzo principal, orquestando la obtención, el parseo y la representación de los datos meteorológicos. 1. Carga Dinámica de Ciudades En lugar de codificar una lista de ciudades, queremos que nuestro dashboard se actualice automáticamente si añadimos nuevas ciudades en el backend. Lo logramos obteniendo un simple archivo ciudades.txt (que contiene un nombre de ciudad por línea) y poblando dinámicamente un elemento desplegable <select> utilizando la API fetch de JavaScript. const citySelector = document . getElementById ( ' citySelector ' ); let myChart = null ; // Variable global para almacenar la instancia de Chart.js async function cargarListaCiudades () { try { const response = await fetch ( ' ciudades.txt ' ); const text = await response . text (); // Filtramos las líneas vacías del archivo de texto const ciudades = text . split ( ' \n ' ). filter ( line => line . trim () !== '' ); ciudades . forEach ( ciudad => { const option = document . createElement ( ' option ' ); option . value = ciudad ; option . textContent = ciudad ; citySelector . appendChild ( option ); }); // Cargamos la primera ciudad por defecto al inicio de la página if ( ciudades . length > 0 ) { cargarYDibujarDatos ( ciudades [ 0 ]); } } catch ( error ) { console . error ( ' Error cargando la lista de ciudades: ' , error ); // Opcional: Mostrar un mensaje de error amigable al usuario } } // Disparamos la carga de ciudades cuando el DOM esté completamente cargado document . addEventListener ( ' DOMContentLoaded ' , cargarListaCiudades ); Enter fullscreen mode Exit fullscreen mode 2. Reacción a la Selección del Usuario Cuando un usuario selecciona una ciudad del desplegable, necesitamos responder de inmediato. Un addEventListener en el elemento <select> detecta el evento change y llama a nuestra función principal para obtener y dibujar los datos de la ciudad recién seleccionada. citySelector . addEventListener ( ' change ' , ( event ) => { const ciudadSeleccionada = event . target . value ; cargarYDibujarDatos ( ciudadSeleccionada ); }); Enter fullscreen mode Exit fullscreen mode 3. Obtención, Parseo y Dibujado de Datos Esta es la función central donde todo cobra vida. Es responsable de: Construir la URL para el archivo CSV específico de la ciudad (ej., datos/León.csv ). Utilizar Papa.parse para descargar y procesar el contenido del CSV directamente en el navegador. PapaParse maneja la obtención y el parseo asíncronos, lo que lo hace increíblemente fácil. Extraer las etiquetas (fechas) y los datos (temperaturas) relevantes del CSV parseado para Chart.js. ¡Crucial! : Antes de dibujar un nuevo gráfico, debemos destruir la instancia anterior de Chart.js ( if (myChart) { myChart.destroy(); } ). ¡Olvidar este paso lleva a gráficos superpuestos y problemas de rendimiento! 💥 Crear una nueva instancia de Chart() con los datos actualizados. Adicionalmente, llama a una función para cargar y mostrar la predicción de IA para esa ciudad, integrándola sin problemas en el dashboard. function cargarYDibujarDatos ( ciudad ) { const csvUrl = `datos/ ${ ciudad } .csv` ; // Nota la carpeta 'datos/' de la Parte 1 const ctx = document . getElementById ( ' weatherChart ' ). getContext ( ' 2d ' ); Papa . parse ( csvUrl , { download : true , // Indica a PapaParse que descargue el archivo header : true , // Trata la primera fila como encabezados skipEmptyLines : true , complete : function ( results ) { const datosClimaticos = results . data ; // Extraer etiquetas (fechas) y datos (temperaturas) const etiquetas = datosClimaticos . map ( fila => fila . fecha_hora . split ( ' ' )[ 0 ]); // Extraer solo la fecha const tempMax = datosClimaticos . map ( fila => parseFloat ( fila . temp_max_c )); const tempMin = datosClimaticos . map ( fila => parseFloat ( fila . temp_min_c )); // Destruir la instancia de gráfico anterior si existe para evitar superposiciones if ( myChart ) { myChart . destroy (); } // Crear una nueva instancia de Chart.js myChart = new Chart ( ctx , { type : ' line ' , data : { labels : etiquetas , datasets : [{ label : `Temp Máx (°C) - ${ ciudad } ` , data : tempMax , borderColor : ' rgb(255, 99, 132) ' , tension : 0.1 }, { label : `Temp Mín (°C) - ${ ciudad } ` , data : tempMin , borderColor : ' rgb(54, 162, 235) ' , tension : 0.1 }] }, options : { // Opciones del gráfico para responsividad, título, etc. responsive : true , maintainAspectRatio : false , scales : { y : { beginAtZero : false } }, plugins : { legend : { position : ' top ' }, title : { display : true , text : `Datos Históricos del Clima para ${ ciudad } ` } } } }); // Cargar y mostrar la predicción de IA cargarPrediccion ( ciudad ); }, error : function ( err , file ) { console . error ( " Error al parsear el CSV: " , err , file ); // Opcional: mostrar un mensaje de error amigable en el dashboard if ( myChart ) { myChart . destroy (); } // Limpiar gráfico si falla la carga } }); } Enter fullscreen mode Exit fullscreen mode 4. Mostrar Predicciones de IA La integración de las predicciones de IA (en las que profundizaremos en la Parte 3) también se gestiona desde el frontend. El backend genera un archivo predicciones.json , y nuestro JavaScript simplemente obtiene este JSON, encuentra la predicción para la ciudad seleccionada y la muestra. async function cargarPrediccion ( ciudad ) { const predictionElement = document . getElementById ( ' prediction ' ); try { const response = await fetch ( ' predicciones.json ' ); const predicciones = await response . json (); if ( predicciones && predicciones [ ciudad ]) { predictionElement . textContent = `Predicción de Temp. Máx. para mañana: ${ predicciones [ ciudad ]. toFixed ( 1 )} °C` ; } else { predictionElement . textContent = ' Predicción no disponible. ' ; } } catch ( error ) { console . error ( ' Error cargando predicciones: ' , error ); predictionElement . textContent = ' Error al cargar la predicción. ' ; } } Enter fullscreen mode Exit fullscreen mode Conclusión (Parte 2) ¡Hemos transformado los datos en bruto en una experiencia atractiva e interactiva! Al combinar el alojamiento estático de GitHub Pages o Netlify, JavaScript "vainilla" para la lógica, PapaParse.js para el manejo de CSV y Chart.js para visualizaciones hermosas, hemos construido un frontend potente que es a la vez gratuito y muy efectivo. El dashboard ahora proporciona información inmediata sobre los patrones climáticos históricos de cualquier ciudad seleccionada. Pero, ¿qué pasa con el futuro? En la tercera y última parte de esta serie , nos adentraremos en el emocionante mundo del Machine Learning para añadir una capa predictiva a nuestro servicio. Exploraremos cómo usar datos históricos para pronosticar el tiempo de mañana, convirtiendo nuestro servicio en un verdadero "oráculo" meteorológico. ¡No te lo pierdas! Referencias y Enlaces de Interés: Servicio Web Completo : Puedes ver el resultado final de este proyecto en acción aquí: https://datalaria.com/apps/weather/ Repositorio GitHub del Proyecto : Explora el código fuente y la estructura del proyecto en mi repositorio: https://github.com/Dalaez/app_weather PapaParse.js : Parser de CSV rápido en el navegador para JavaScript: https://www.papaparse.com/ Chart.js : Gráficos JavaScript simples pero flexibles para diseñadores y desarrolladores: https://www.chartjs.org/ GitHub Pages : Documentación oficial sobre cómo alojar tus sitios: https://docs.github.com/es/pages Netlify : Página oficial de Netlify: https://www.netlify.com/ Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Datalaria Follow More from Datalaria Weather Service Project (Part 2): Building the Interactive Frontend with GitHub Pages or Netlify and JavaScript # frontend # javascript # tutorial # webdev Weather Service Project (Part 1): Building the Data Collector with Python and GitHub Actions or Netlify # api # automation # python # tutorial Proyecto Weather Service (Parte 1): Construyendo el Recolector de Datos con Python y GitHub Actions o Netlify # dataengineering # python # spanish # tutorial 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://foldingathome.org/ | Folding@home – Fighting disease with a world wide distributed super computer. You are using an outdated browser. Please upgrade your browser to improve your experience. Toggle navigation Menu Download Science Covid-19 Diseases Project Timeline Papers & Results Dig deeper Support User Guides FAQ Forum 🔗 Discord 🔗 Donate USD via Folding@home Foundation 🔗 Crypto via Folding@home Foundation 🔗 DAF via Folding@home Foundation 🔗 Merchandise store 🔗 Data Statistics News About Gregory Bowman, PhD The Folding@home Consortium (FAHC) Contact us Front Page --> START FOLDING NOW Install our software to become a citizen scientist and contribute your compute power to help fight global health threats like COVID19, Alzheimer’s Disease, and cancer. Our software is completely free, easy to install, and safe to use. Available for: Linux Windows Mac Start folding Latest Posts Catching KRAS in the Act: Simulations Reveal New Paths for Targeted Protein Degradation Quantifying the accuracy of protein simulation models FAH is enabling AI developments JOIN THE COMMUNITY There are many opportunities to engage with the Folding@home community, including: Twitter (@foldingathome), our blog , and Facebook for news Discord server for discussion foldingforum.org for technical support 1 in a million WHY WE NEED YOU The calculations we’re performing to understand how biology works and how we can treat disease are computationally demanding. We need every ounce of computer power we can get! together we are powerful We empower anyone with a computer and an internet connection to become a citizen scientist and join forces to fight global health threats by donating their unused computer power. what’s FOLDING? “Folding” in our community refers to running simulations of proteins, the molecular machines that perform most of the active processes we associate with life, from muscle contraction to sensing light and digesting food. We exploit the biological insight these simulations provide to inform drug discovery and other efforts to combat global health threats. Learn more Team A number of scientists from across the globe are now involved in the Folding@home Consortium , under the directorship of Dr. Greg Bowman ( @drGregBowman ), soon to be at the University of Pennsylvania. | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Software Comparisons — What are the differences, pros and cons? This is a list of top posts that members of the community have created. These are the posts folks have generally continued coming back to over and over again, so we created this page to make some of these more discoverable. Hopefully you better understand some of the differences here once you've found the guide you need! Redux vs Context API: When to use them Declarative vs imperative Using then() vs Async/Await in JavaScript Kubernetes Ingress vs Service Mesh Create react app vs Vite Callbacks vs Promises Constructors in Python ( init vs __new ) When to Use Server-Side rendering vs Static Generation in Next.js CSS Modules vs CSS-in-JS. Who wins? append VS appendChild Cloud Run vs App Engine: a head-to-head comparison using facts and science Logical OR (||) vs Nullish Coalescing Operator (??) in JavaScript Server-Side Rendering (SSR) Vs Client-Side Rendering (CSR) Asp Net Core - Rest API Authorization with JWT (Roles Vs Claims Vs Policy) - Step by Step Python GUI, PyQt vs TKinter web3.js vs ethers.js: a Comparison of Web3 Libraries Cookies vs Local Storage vs Session Storage React Router V5 vs V6 LocalStorage vs Cookies: All You Need To Know About Storing JWT Tokens Securely in The Front-End TailwindCSS vs Styled-Components in ReactJs WebSockets vs Long Polling JSX.Element vs ReactElement vs ReactNode useState() vs setState() - Strings, Objects, and Arrays Methods vs Computed in Vue React: class components vs function components Supabase Vs Firebase Pricing and When To Use Which for loop vs .map() for making multiple API calls 🤝 Promise.allSettled() VS Promise.all() in JavaScript 🍭 React vs Vue vs Angular vs Svelte Azure Artifacts vs Build Artifacts vs Pipeline Artifacts: Difference EXPLAINED! When to use Svelte vs SvelteKit vs Sapper? C#, Task.WhenAll vs Parallel.ForEach Map vs MergeMap vs SwitchMap CSS 3 VS Tailwind CSS Serverless Framework vs SAM vs AWS CDK Angular: Setters vs ngOnChanges - which one is better? Interview question: heap vs stack (C#) JS interview in 2 minutes / Static vs Dynamic typing DynamoDB Scan Vs Query Operation Experiment Result componentWillMount() vs componentDidMount() Anonymous Functions vs Named Functions vs Arrow Functions Flexbox - Align Items vs Align Content. Vue vs React: What to choose in 2021? Laravel Jetstream vs Breeze vs Laravel/ui Linux Vs Windows - Why Linux Is Better For Programming & Web Dev (A newbie experience) Fibonacci: Recursion vs Iteration TypedDict vs dataclasses in Python — Epic typing BATTLE! SSR vs CSR Callback vs Promises vs Async Await Poetry vs pip: Or How to Forget Forever "requirements.txt" Cheat Sheet for Beginners Cypress vs WebdriverIO | Which one to pick? Type Aliases vs Interfaces in TypeScript PyQt vs Tkinter (Spanish) Django vs Mern Which one to choose? YYYY vs yyyy - The day the Java Date Formatter hurt my brain JavaScript - debounce vs throttle ⏱ Go: Fiber vs Echo (a developer point) RxJS debounce vs throttle vs audit vs sample — Difference You Should Know Laravel vs Node.js - Which One Is The Best Back-End To Choose In 2021? Composer update Vs Composer Install Concurrency in modern programming languages: Rust vs Go vs Java vs Node.js vs Deno vs .NET 6 Pure vs Impure Functions Git: Theirs vs Ours Angular vs Blazor? A decision aid for web developers in 2022 APIView vs Viewsets PyQt vs Pyside Eager Loading VS Lazy Loading in SQLAlchemy React vs Vue: Popular Front end frameworks in 2022 OpenAPI spec (swagger) v2 vs v3 apt update vs apt upgrade: What's the difference? Framework vs library vs package vs module: The debate What Should You Put in a Constructor vs ngOnInit in Angular Javascript vs memes Ionic vs React Nactive vs Flutter Selenium vs The World Faster Clicker Redux VS React Context: Which one should you choose? Styled components vs Emotion js: A performance perspective Git Submodules vs Monorepos MongoDB: Normalization vs Denormalization PUT vs PATCH & PUT vs POST Laravel vs ASP.NET Framework | Which is Better For Your Project? The last-child vs last-of-type selector in CSS Moq vs NSubstitute - Who is the winner? CSS solutions Battle: Compile time CSS-in-JS vs CSS-in-JS vs CSS Modules vs SASS querySelector vs getElementById Docker CMD vs ENTRYPOINT React Virtualization - react-window vs react-virtuoso The Development vs Production Environments npm vs npx - which to use when? Immediate vs eventual consistency Fleet vs VSCode Laravel breeze vs Jetstream Pug vs EJS? Join vs includes vs eager load vs preload Require vs Assert in Solidity Centralized vs Distributed Systems in a nutshell PyQt vs Tkinter (German) Flutter vs React Native Comparison - Which Use for Your Project in 2022 insertAdjacentHTML vs innerHTML Moment.js vs Luxon Generics vs Function Overloading vs Union Type Arguments in TypeScript Sass vs Scss What’s the difference: A/B Testing VS Blue/Green Deployment? Publisher Subscriber vs Observer pattern with C# VSCode vs Vim Persistent vs Non-Persistent Connections | Creating a Multiplayer Game Server - Part 2 Spread VS Rest Operator package.json vs package-lock.json: do you need both? Double Quotes vs Single Quotes in PHP RxJS operators: retry vs repeat? CAP Theorem: Availability vs consistency Scaling Airflow – Astronomer Vs Cloud Composer Vs Managed Workflows For Apache Airflow MySQL vs MySQLi vs PDO Performance Benchmark, Difference and Security Comparison For PHP devs - PHP Storm vs VSCode Difference Between Message vs Event vs Command Document vs Relational Databases IntelliJ vs Eclipse vs VSCode CSS position fixed vs sticky Telegraf VS Node-Telegram-Bot-API Flatpak vs Snaps vs AppImage vs Packages - Linux packaging formats compared Pytest vs Cypress: A fair fight in UI testing? Inline vs Inline-block vs Block Logging vs Tracing: Why Logs Aren’t Enough to Debug Your Microservices Solidity Gas Optimizations pt.1 - Memory vs Storage Bicep vs ARM templates Nest.js vs Express.js Retry vs Circuit Breaker Custom react hooks vs services Global vs Local State in React The What, Why, and When of Mono-Lambda vs Single Function APIs Frontend vs Backend: Which One Is Right For You? React vs Preact vs Inferno What is the difference between Library vs Framework? Compiling vs Transpiling npm vs yarn vs pnpm commands cheatsheet CPU Bound vs I/O Bound DataBindingUtil.inflate vs View Binding Inflate Includes() vs indexOf() in JavaScript useEffect vs useLayoutEffect: the difference and when to use them Ruby Modules: include vs extend vs prepend OOP vs FP with Javascript CSP vs Actor model for concurrency Rust Concept Clarification: Deref vs AsRef vs Borrow vs Cow Creating a countdown timer RxJS vs Vanilla JS Asynchronous vs Synchronous Programming SOAP vs REST vs gRPC vs GraphQL PyQT vs wxPython: Which GUI module for your project? CSS Drop Shadow vs Box Shadow Infrastructure-as-Code vs Configuration Management TypeScript: type vs interface Head recursion Vs Tail recursion Dev.to VS Hashnode VS Medium: Pick ONE Classes vs Functional components in React The Battle of the Array Titans: Lodash vs Vanilla - An Experiment AWS EventBridge vs S3 Notification Inheritance Vs Delegation JavaScript vs JavaScript. Fight! Interface vs Type in Typescript setTimeout vs setImmediate vs process.nextTick Kotlin vs Python Kotlin Multiplatform vs Flutter: Which One to Choose for Your Apps Supervised Learning vs Unsupervised Learning React Hooks API vs Vue Composition API, as explored through useState DEV VS Hashnode VS Medium: Where Should You Start Your Tech Blog Implementing React Routes (Part -2) Link Vs NavLink Vanilla CSS VS CSS Frameworks Postman vs Insomnia: which API testing tool do you use? Serif vs Sans-serif vs Monospaced Getting started with fp-ts: Either vs Validation Typescript Implicit vs Explicit types CWEs vs OWASP top 10? Understanding Offset vs Cursor based pagination Material Design 1 vs Material Design 2 Signed vs Unsigned Bit Integers: What Does It Mean and What's The Difference? default vs null - which is a better choice, and why? Summary of Flutter vs Tauri SpringBoot2 Blocking Web vs Reactive Web JSON-RPC vs REST for distributed platform APIs Explain RBAC vs ACL Like I'm Five .map() vs .forEach() Difference between Dialogflow CX vs Dialogflow ES API keys vs JWT authorization – Which is best? find() vs filter() Snake Case vs Camel Case AWS vs OCI Object Storage options and comparison MAUI XAML vs MAUI Blazor Pointer vs Reference in C++: The Final Guide Comparing reactivity models - React vs Vue vs Svelte vs MobX vs Solid vs Redux Frontend vs Backend, which do you prefer and why? Remix vs Next.js: A Detailed Comparison NodeJS vs Apache performance battle for the conquest of my ❤️ ⚔️ Functional vs Object Oriented vs Procedural programming Lazy vs Eager Initialization Laravel ORM vs Query Builder vs SQL: SPEED TEST! Concurrency in Go vs Erlang TypeScript ANY vs UNKNOWN—A Deep Dive MVC vs MVP vs MVVM Design Patterns GNOME vs KDE Plasma Database Views vs Table Functions Server Side Rendering vs Static Site Generation vs Incremental Static Regeneration Understanding Rendering in Web Apps: SPA vs MPA 'any' vs 'unknown' in TypeScript 👀 TypeORM - Multiple DB Calls vs Single DB Call JS array vs object vs map Benchmarking Python JSON serializers - json vs ujson vs orjson textContent VS innerText Web2 vs Web3 Opinion: Architect VS Engineer VS Developer Jenkins pipeline: agent vs node? Hibernate Naming Strategies: JPA Specification vs Spring Boot Opinionation Pyqt vs PySide (Spanish) Unique Identifiers: UUID vs NanoID A comparison of state management in React with Mobx vs State lifting Meteor vs Next? A brutally honest answer Git-Flow vs Github-flow Set vs Array Python Packaging: sdist vs bdist JavaScript array methods: Mutator VS Non-mutator and the returning value Uint vs Int. Qual a diferença em Go? Understanding Rendering in Web Apps: CSR vs SSR Flask vs Bottle Web Framework Moment.js vs Intl object PyQt vs Kivy Web3: Truffle VS Hardhat VS Embark VS Brownie The one about CSS vs CSS in JS React Hooks vs Svelte - Why I chose Svelte? TaskEither vs Promise looking for answers !, strapi vs nest js for my next project SOP vs CORS? Pagination in an API: page number vs start index SVG sprites vs CSS background image for multiple instances of icons Javascript Streams vs Generators JS Date vs Moment.js: A Really Simple Comparison AMQP vs HTTP return Task vs return await Task Arrow Function vs Function Front-end vs Back-end, and Static vs Dynamic Websites setImmediate() vs setTimeout() vs process.nextTick() Solace PubSub+ vs Kafka: The Basics Agency VS Product Company: Which One's Right for You? Stateless vs Stateful - Which direction should you take? Clean Architecture vs Vertical Slice Architecture Functional programming vs object oriented programming Using Array.prototype.includes() vs Set.prototype.has() to filter arrays Hot vs Cold Observables Reassignment vs Mutability Database (Schema) migration to Kubernetes - initContainers vs k8s jobs - Gatsby vs Next.JS - What, Why and When? Which is faster: obj.hasOwnProperty(prop) vs Object.keys(obj).includes(prop) React Fragment VS Div Happy coding! 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/abewheeler/sunpeak-chatgpt-app-framework-p4j | sunpeak: ChatGPT App Framework - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Abe Wheeler Posted on Dec 11, 2025 sunpeak: ChatGPT App Framework # showdev # mcp # githunt # news Imagine having one of the first apps on the Apple App Store. ChatGPT Apps aren't open to the public yet, but when they are, ship first and collect free users. Introducing sunpeak, the open-source framework to quickstart, build, test, and ship your ChatGPT App first. I sold my YC company a few months back, and I've been playing with ChatGPT Apps since. The official tooling from OpenAI is sparse, so I figured I'd fix it. https://github.com/Sunpeak-AI/sunpeak/ Interactive, visual experiences are the future of MCP and human-genAI interaction. It's time to build the transition from the CLI to the GUI era for AI! Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Abe Wheeler Follow Founder sunpeak.ai, Trigo (YC, acq). Built AI adtech at Amazon. Ship embedded ChatGPT Apps (MCP Apps) quickly with sunpeak ☀️🏔️ https://github.com/Sunpeak-AI/sunpeak ⭐️ -> ❤️ Location Austin, TX, USA Education USC Work Founder Joined Dec 5, 2025 More from Abe Wheeler MCP Needs a Browser # mcp # webdev # ai # react Introducing the Sunpeak Resource Repository # mcp # webdev # ai # react Ship a ChatGPT App in 2 commands # mcp # webdev # ai # react 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://kubernetes.github.io/ingress-nginx/ | Welcome - Ingress-Nginx Controller Skip to content Ingress-Nginx Controller Welcome Initializing search kubernetes/ingress-nginx Welcome Deployment User Guide Examples Developer Guide FAQ Ingress-Nginx Controller kubernetes/ingress-nginx Welcome Welcome Welcome How it works Troubleshooting kubectl plugin Deployment Deployment Installation Guide Bare-metal considerations Role Based Access Control (RBAC) Upgrade Hardening guide User Guide User Guide NGINX Configuration NGINX Configuration Introduction Basic usage Annotations Annotations Risks ConfigMap Custom NGINX template Log format Command line arguments Custom errors Default backend Exposing TCP and UDP services Exposing FCGI services Regular expressions in paths External Articles Miscellaneous Prometheus and Grafana installation Multiple Ingress controllers TLS/HTTPS Third party addons Third party addons ModSecurity Web Application Firewall OpenTelemetry Examples Examples Introduction Prerequisites Sticky Sessions Auth Auth Basic Authentication Client Certificate Authentication External Basic Authentication External OAUTH Authentication Customization Customization Configuration Snippets Custom Configuration Custom Errors Custom Headers External authentication Custom DH parameters for perfect forward secrecy Sysctl tuning Docker registry gRPC Multi TLS certificate termination Rewrite Static IPs TLS termination Open Policy Agent rules Canary Deployments Developer Guide Developer Guide Getting Started Code Overview FAQ Overview ¶ This is the documentation for the Ingress NGINX Controller. It is built around the Kubernetes Ingress resource , using a ConfigMap to store the controller configuration. You can learn more about using Ingress in the official Kubernetes documentation . Getting Started ¶ See Deployment for a whirlwind tour that will get you started. Made with Material for MkDocs | 2026-01-13T08:49:12 |
https://dev.to/datalaria/weather-service-project-part-1-building-the-data-collector-with-python-and-github-actions-or-2ibd#automating-the-backend-with-netlify-functions-and-cron-jobs | Weather Service Project (Part 1): Building the Data Collector with Python and GitHub Actions or Netlify - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. 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Report Abuse Daniel for Datalaria Posted on Jan 12 • Originally published at datalaria.com Weather Service Project (Part 1): Building the Data Collector with Python and GitHub Actions or Netlify # api # python # automation # tutorial As I mentioned in a previous post, one of my goals with Datalaria is to get my hands dirty with projects that allow me to learn and connect different technologies in the data world. Today, we begin a series dedicated to one of those projects: the creation of a complete global weather service , from data collection to visualization and prediction, all serverless and using free tools. In this first installment, we will focus on the heart of the system: the backend data collector . We'll see how to build a "robot" that works for us 24/7, connecting to an external API, saving structured information, and doing all this automatically and for free. Let's dive in! The First Step: Talking to the OpenWeatherMap API Every weather service needs a data source. I chose OpenWeatherMap for its popularity and generous free plan. The initial process is straightforward: Register : Create an account on their website. Get the API Key : Generate a unique key that will identify us in each call. It's like our "key" to access their data. Store the Key : Never directly in the code! We'll discuss this further below. With the key in hand (or almost!), I wrote a first test_clima.py script to test the connection using Python's fantastic requests library: import requests API_KEY = " YOUR_API_KEY_HERE " # Temporarily! We'll use Secrets later CITY = " Madrid " URL = f " [https://api.openweathermap.org/data/2.5/weather?q=](https://api.openweathermap.org/data/2.5/weather?q=) { CITY } &appid= { API_KEY } &units=metric&lang=es " try : response = requests . get ( URL ) response . raise_for_status () # Raises an exception for HTTP errors (4xx or 5xx) data = response . json () print ( f " Temperature in { CITY } : { data [ ' main ' ][ ' temp ' ] } °C " ) except requests . exceptions . RequestException as e : print ( f " Error connecting to the API: { e } " ) except KeyError as e : print ( f " Unexpected API response, key missing: { e } " ) Enter fullscreen mode Exit fullscreen mode First Obstacle Overcome (with Patience): When I first ran it, I got a 401 Unauthorized error! 😱 It turns out that OpenWeatherMap API Keys can take a few hours to activate after being generated. The lesson: sometimes, the solution is simply to wait. ⏳ The "Database": Why CSV and Not SQL? With data flowing, I needed to store it. I could have set up an SQL database (PostgreSQL, MySQL...), but that would involve complexity, a server (cost), and for this project, it was overkill. I opted for radical simplicity: CSV (Comma Separated Values) files . Advantages : Easy to read and write with Python, perfectly versionable with Git (we can track changes), and sufficient for the initial data volume we'd be handling. Key Logic : I needed to append a new row to each city's file daily, but only write the header ( date_time , city , temperature_c , etc.) the first time. Python's native csv library and os.path.exists make this trivial: import csv import os from datetime import datetime # ... (code to fetch API data for a city) ... now = datetime . now (). strftime ( ' %Y-%m-%d %H:%M:%S ' ) data_row = [ now , city , temperature , ...] # List with the data header = [ ' date_time ' , ' city ' , ' temperature_c ' , ...] # List with column names file_name = f " data/ { city } .csv " # We'll create a 'data' folder # Ensure the 'data' folder exists os . makedirs ( os . path . dirname ( file_name ), exist_ok = True ) is_new_file = not os . path . exists ( file_name ) try : with open ( file_name , mode = ' a ' , newline = '' , encoding = ' utf-8 ' ) as f : writer = csv . writer ( f ) if is_new_file : writer . writerow ( header ) # Write header ONLY if new file writer . writerow ( data_row ) # Append the new data row print ( f " Data saved for { city } " ) except IOError as e : print ( f " Error writing to { file_name } : { e } " ) Enter fullscreen mode Exit fullscreen mode The Automation Robot: GitHub Actions to the Rescue 🤖 Here comes the magic: how to make this script run daily without having a server constantly on? The answer is GitHub Actions , the automation engine integrated into GitHub. It's like having a small robot working for us for free. Security First: Never Upload Your API Key! The biggest mistake would be to upload registrar_clima.py with the API_KEY written directly in the code. Anyone could see it on GitHub. Solution : Use GitHub's Repository Secrets . Go to Settings > Secrets and variables > Actions in your GitHub repository. Create a new secret named OPENWEATHER_API_KEY and paste your key there. In your Python script, read the key securely using os.environ.get("OPENWEATHER_API_KEY") . The Robot's Brain: The .github/workflows/update-weather.yml File This YAML file tells GitHub Actions what to do and when: name : Daily Weather Data Update on : workflow_dispatch : # Allows manual triggering from GitHub push : branches : [ main ] # Triggers if changes are pushed to the main branch schedule : - cron : ' 0 6 * * *' # The key: triggers daily at 06:00 UTC jobs : update_data : runs-on : ubuntu-latest # Use a free Linux virtual machine steps : - name : Checkout repository code uses : actions/checkout@v4 # Downloads our code - name : Set up Python uses : actions/setup-python@v5 with : python-version : ' 3.10' # Or your preferred version - name : Install necessary dependencies run : pip install -r requirements.txt # Reads requirements.txt and installs requests, etc. - name : Execute data collection script run : python registrar_clima.py # Our main script! env : OPENWEATHER_API_KEY : ${{ secrets.OPENWEATHER_API_KEY }} # Securely injects the secret - name : Save new data to repository (Commit & Push) run : | git config user.name 'github-actions[bot]' # Identifies the 'bot' git config user.email 'github-actions[bot]@users.noreply.github.com' git add data/*.csv # Adds ONLY the modified CSV files in the 'data' folder # Check if there are changes before committing to avoid empty commits git diff --staged --quiet || git commit -m "Automated weather data update 🤖" git push # Pushes changes to the repository env : GITHUB_TOKEN : ${{ secrets.GITHUB_TOKEN }} # Automatic token to allow the push Enter fullscreen mode Exit fullscreen mode This last step is crucial! The Action itself acts as a user, performing git add , git commit , and git push of the CSV files that the Python script has just modified. This way, the updated data is saved in our repository every day. The Serverless Alternative: Deployment and Automation with Netlify 🚀 While GitHub Actions is a fantastic automation tool, for this project I decided to explore an alternative even more integrated with the "serverless" concept: Netlify . Netlify not only allows us to deploy our static frontend (like GitHub Pages) but also offers serverless functions and, crucially for our backend, scheduled functions (or Cron Jobs) . Deploying the Static Frontend with Netlify Connect Your Repository : The process is incredibly simple. Log in to Netlify, click "Add new site," and select "Import an existing project." Connect with your GitHub account and choose your Weather Service project repository. Basic Configuration : Netlify will automatically detect your project. Ensure that the "Build command" is empty (as it's a static site with no build process) and that the "Publish directory" is the root of your repository ( ./ ). Continuous Deployment : Netlify will automatically configure continuous deployment. Every time you git push to your main branch (or whichever branch you've configured), Netlify will rebuild and deploy your site. Automating the Backend with Netlify Functions (and Cron Jobs) This is where Netlify Serverless Functions shine for our data collector. Instead of a GitHub Actions workflow, we can use a Netlify function to run our Python script on a schedule: Project Structure : Create a netlify/functions/ folder at the root of your project. Inside, you can have a Python file like collect_weather.py . Dependency Management : You'll need a requirements.txt file at the root of your project for Netlify to install Python dependencies ( requests , pandas , scikit-learn ). netlify.toml Configuration : This file at your project's root is crucial for defining your functions and their schedules: [build] publish = "." # Directory where your index.html is located command = "" # No build command needed for a static site [functions] directory = "netlify/functions" # Where your functions are located node_bundler = "esbuild" # For JS/TS functions. Netlify will detect Python. [[edge_functions]] # For scheduling a function (requires Netlify Edge Functions) function = "collect_weather" # The name of your function (without the .py extension) path = "/.netlify/functions/collect_weather" # The function path (can be different) schedule = "@daily" # Or use a cron string like "0 6 * * *" The Python Function ( netlify/functions/collect_weather.py ) : This function will encapsulate the logic of your registrar_clima.py . Netlify will execute it in a Python environment. # netlify/functions/collect_weather.py import json import requests import os import time from datetime import datetime import csv # ... (all your registrar_clima.py script code goes here) ... # Ensure API_KEYs are read from os.environ # and that data is written directly to the repository using GitPython # or in a way that Netlify can persist changes. # **Important**: Netlify Functions are ephemeral. # To persist changes in the repo, you would need Git integration # similar to what GitHub Actions would do (using a Personal Access Token). # However, for a static frontend, the simplest approach is for this function # to only generate a predictions JSON and upload it to storage like S3, # or for the Python collection script to continue running on GitHub Actions # and Netlify only serve the frontend. # If the idea is for Netlify to ALSO commit, this is more complex # and would require a Git API or a PAT token from Netlify. def handler ( event , context ): # The main call to your data collection logic would go here # This is a simplified example try : # Your logic to fetch and save data, generate CSVs/JSONs # If you want this to commit to GitHub, you would need: # 1. A GitHub PAT token stored as an environment variable in Netlify. # 2. A library like GitPython to interact with Git. # It is more common for serverless functions to persist data in databases # or object storage services (e.g., S3), not in the Git repo itself. # For this project, the GitHub Actions approach for the backend # that directly commits to the repo is still simpler # for CSV storage. Netlify would be ideal for the frontend # and functions for real-time APIs or lightweight predictions. print ( " Netlify function for weather collection executed. " ) # If the function generates any JSON output for the frontend, it would return it here: # return { # "statusCode": 200, # "body": json.dumps({"message": "Data collection complete"}), # } return { " statusCode " : 200 , " body " : json . dumps ({ " message " : " Backend logic would run here. For data persistence in GitHub, GitHub Actions is more direct. " }), } except Exception as e : return { " statusCode " : 500 , " body " : json . dumps ({ " error " : str ( e )}), } Environment Variables in Netlify : For the OPENWEATHER_API_KEY , go to Site settings > Build & deploy > Environment variables and add your key there. Important Consideration : For the Netlify function to persist changes directly to your GitHub repository (like committing the CSVs), you would need a more advanced setup (such as using a GitHub Personal Access Token within the Netlify function to perform git push ), which is more complex. To maintain simplicity and direct storage in the Git repository with automatic CSV commits, the GitHub Actions solution remains the most straightforward and efficient for the data collector backend in this specific case . Netlify excels at frontend deployment and for functions that interact with external services or databases without committing to the main application's Git repository. In this project, we use GitHub Actions for the backend (collecting and committing CSVs) and Netlify for frontend deployment and potentially for lighter, real-time functions that don't need to modify the Git repo. This last step is crucial! The Action itself acts as a user, performing git add , git commit , and git push of the CSV files that the Python script has just modified. This way, the updated data is saved in our repository every day. The Scaling Problem (and the Necessary Architectural Pivot) My initial idea was to monitor about 1000 cities and store everything in a single weather_data.csv file. I did a quick calculation: 1000 cities * ~200 bytes/day * 365 days * 3 years... over 200 MB! 😱 Why is this a problem? Because the frontend (our dashboard, which we'll see in the next post) runs in the user's browser. It would have to download that entire 200 MB just to display the graph for one city. Totally unacceptable in terms of performance. 🐢 The Architectural Solution: Switch to a "one file per entity" strategy. We create a data/ folder. The registrar_clima.py script now generates (or appends data to) one CSV file per city: data/Madrid.csv , data/Leon.csv , data/Tokyo.csv , etc. This way, when the user wants to see the weather for Leon, the frontend will only download the data/Leon.csv file, which will be just a few kilobytes. Instant loading! ✨ Second Scaling Obstacle (API Limits): OpenWeatherMap, in its free plan, allows about 60 calls per minute. My loop to get data for 155 cities (my current list) would make these calls too quickly. Vital Solution: Add import time at the beginning of the Python script and time.sleep(1.1) at the end of the for city in cities: loop. This introduces a pause of slightly more than 1 second between each API call, ensuring we stay below the limit and avoid being blocked. 🚦 Conclusion (Part 1) We've got the foundation! We've built a robust and automated system that: Connects to an external API securely. Processes and stores historical data for multiple entities (cities). Runs daily, at no cost, thanks to GitHub Actions. Is designed to scale efficiently. In the next post, we'll put on our frontend developer hats and build the interactive dashboard that will allow any user to explore this data with dynamic graphs. Don't miss it! References and Links of Interest: Complete Web Service : See the live project in action here: https://datalaria.com/apps/weather/ Project GitHub Repository : Explore the source code and project structure: https://github.com/Dalaez/app_weather OpenWeatherMap : Weather API documentation: https://openweathermap.org/api Python Requests : Documentation for the HTTP requests library: https://requests.readthedocs.io/en/master/ GitHub Actions : Official GitHub Actions guide: https://docs.github.com/en/actions Netlify : Official Netlify website: https://www.netlify.com/ Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . 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https://dev.to/thekarlesi/secure-authentication-in-nextjs-building-a-production-ready-login-system-4m7#main-content | Secure Authentication in Next.js: Building a Production-Ready Login System - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Esimit Karlgusta Posted on Jan 4 Secure Authentication in Next.js: Building a Production-Ready Login System # nextjs # programming # webdev # beginners Secure Authentication in Next.js: Building a Production-Ready Login System Every great SaaS product begins at the same point: the login page. It is the gatekeeper of your user data and the first interaction your customers have with your professional application. Yet, for many developers, setting up authentication feels like a high-stakes puzzle where a single mistake can lead to security vulnerabilities or a frustrated user base. If you have ever struggled with session management, wondered how to securely store user credentials, or felt overwhelmed by the complexity of OAuth providers, you are in the right place. In this lesson, we are going to strip away the confusion and build a robust, secure authentication system using Auth.js (NextAuth v5) within the Next.js App Router framework. The Problem: The "Homegrown" Auth Trap Many developers start by trying to build their own authentication logic. They create a users table in MongoDB, hash passwords with bcrypt, and try to manage JWTs (JSON Web Tokens) manually in cookies. While this is a great academic exercise, it is often a recipe for disaster in a production SaaS environment. Manual auth systems frequently suffer from: Security Gaps: Improperly configured cookies or CSRF (Cross-Site Request Forgery) vulnerabilities. Maintenance Burden: Keeping up with changing security standards and API updates from providers like Google or GitHub. UX Friction: Hard-to-implement features like "Forgot Password," "Magic Links," or social logins. The Shift: Moving to Auth.js The professional way to handle this in 2026 is by using a library that does the heavy lifting for you. Auth.js is the standard for anyone wanting to Learn Next.js for SaaS . It handles session management, multi-provider support, and database integration out of the box, allowing you to focus on your core product features instead of reinventing the security wheel. By shifting to an established library, you gain the confidence that your sessions are handled via encrypted, server-only cookies. You also get an easy path to adding "Login with Google," which significantly increases conversion rates for modern SaaS products. Deep Dive: Setting Up Your Auth Workflow To build a complete SaaS, we need a flexible system. We will implement two main strategies: Email/Password (Credentials) for traditional users and Google OAuth for a frictionless experience. 1. The Architecture of Auth.js in the App Router In the Next.js App Router, authentication happens primarily on the server. We use a combination of: The Auth Configuration File: Where we define our providers and callbacks. Middleware: To protect routes before they even hit the browser. Server Actions: To handle login and signup logic securely. 2. Initial Setup and Environment Variables First, we need to install the necessary packages. In your terminal, run: npm install next-auth@beta mongodb @auth/mongodb-adapter bcryptjs Enter fullscreen mode Exit fullscreen mode Before writing code, we must define our environment variables. These are secrets that should never be committed to GitHub. Create a .env.local\ file: AUTH_SECRET=your_super_secret_random_string NEXT_PUBLIC_APP_URL=http://localhost:3000 AUTH_GOOGLE_ID=your_google_client_id AUTH_GOOGLE_SECRET=your_google_client_secret MONGODB_URI=your_mongodb_connection_string Enter fullscreen mode Exit fullscreen mode 3. Configuring the Auth Library We will create a central configuration file. This is the heart of your security system. It tells Next.js how to talk to your database and how to verify users. File: auth.ts (Root directory) import NextAuth from " next-auth " ; import Google from " next-auth/providers/google " ; import Credentials from " next-auth/providers/credentials " ; import { MongoDBAdapter } from " @auth/mongodb-adapter " ; import clientPromise from " @/lib/mongodb " ; import bcrypt from " bcryptjs " ; export const { handlers , auth , signIn , signOut } = NextAuth ({ adapter : MongoDBAdapter ( clientPromise ), providers : [ Google , Credentials ({ name : " credentials " , credentials : { email : { label : " Email " , type : " email " }, password : { label : " Password " , type : " password " }, }, async authorize ( credentials ) { if ( ! credentials ?. email || ! credentials ?. password ) return null ; const dbClient = await clientPromise ; const user = await dbClient . db (). collection ( " users " ). findOne ({ email : credentials . email }); if ( ! user || ! user . password ) return null ; const isValid = await bcrypt . compare ( credentials . password as string , user . password ); return isValid ? { id : user . _id . toString (), email : user . email } : null ; }, }), ], session : { strategy : " jwt " }, pages : { signIn : " /login " , }, callbacks : { async session ({ session , token }) { if ( token . sub && session . user ) { session . user . id = token . sub ; } return session ; }, }, }); Enter fullscreen mode Exit fullscreen mode 4. Creating the Login UI with Tailwind and DaisyUI A SaaS needs a professional-looking login page. Using Tailwind CSS and DaisyUI, we can build a clean, responsive form that works on any device. File: app/(auth)/login/page.tsx import { signIn } from " @/auth " ; export default function LoginPage () { return ( < div className = "flex items-center justify-center min-h-screen bg-base-200" > < div className = "card w-full max-w-md shadow-2xl bg-base-100" > < div className = "card-body" > < h2 className = "text-3xl font-bold text-center mb-6" > Welcome Back </ h2 > < form action = { async () => { " use server " ; await signIn ( " google " , { redirectTo : " /dashboard " }); } } > < button className = "btn btn-outline w-full flex items-center gap-2" > Continue with Google </ button > </ form > < div className = "divider text-xs uppercase text-base-content/50" > or </ div > < form className = "space-y-4" > < div className = "form-control" > < label className = "label" > < span className = "label-text" > Email </ span > </ label > < input type = "email" placeholder = "email@example.com" className = "input input-bordered" required /> </ div > < div className = "form-control" > < label className = "label" > < span className = "label-text" > Password </ span > </ label > < input type = "password" placeholder = "••••••••" className = "input input-bordered" required /> </ div > < button className = "btn btn-primary w-full" > Sign In </ button > </ form > < p className = "text-center mt-4 text-sm" > Don't have an account? < a href = "/signup" className = "link link-primary" > Sign up </ a > </ p > </ div > </ div > </ div > ); } Enter fullscreen mode Exit fullscreen mode 5. Protecting Routes with Middleware In a SaaS application, you don't want unauthorized users accessing the dashboard or settings pages. Instead of checking for a session on every single page, we use Next.js Middleware to handle this globally. File: middleware.ts (Root directory) import { auth } from " @/auth " ; export default auth (( req ) => { const isLoggedIn = !! req . auth ; const { nextUrl } = req ; const isAuthPage = nextUrl . pathname . startsWith ( " /login " ) || nextUrl . pathname . startsWith ( " /signup " ); const isDashboardPage = nextUrl . pathname . startsWith ( " /dashboard " ); if ( isDashboardPage && ! isLoggedIn ) { return Response . redirect ( new URL ( " /login " , nextUrl )); } if ( isAuthPage && isLoggedIn ) { return Response . redirect ( new URL ( " /dashboard " , nextUrl )); } }); export const config = { matcher : [ " /((?!api|_next/static|_next/image|favicon.ico).*) " ], }; Enter fullscreen mode Exit fullscreen mode Key Benefits and Learning Outcomes By following this workflow, you achieve several critical milestones in your development journey: Centralized Security: You have a single source of truth for your authentication logic. Database Synchronization: Your user accounts are automatically saved to MongoDB whenever someone logs in via Google. Improved Conversions: Providing OAuth options reduces the friction of creating an account, which is vital for any Build SaaS with Next.js project. Type Safety: Using TypeScript ensures that your session data is predictable throughout your components. Common Mistakes to Avoid Exposing the Secret: Never leave your AUTH_SECRET empty or use a simple string in production. Use a tool like openssl rand -base64 32 to generate a strong key. Client-Side Protection Only: Never rely solely on hiding UI elements to secure your app. Always verify the session on the server or through middleware. Forgetting Secure Cookies: In production, ensure your AUTH_URL uses HTTPS, otherwise Auth.js will not set secure cookies, and your login will fail. Pro Tips and Best Practices Use Server Components for Auth Checks: Whenever possible, check the session in a Server Component using the auth() function. It is faster and more secure than checking on the client. Custom Session Data: If you need to store extra info (like a user's subscription status), extend the session callback in auth.ts to include those fields from your MongoDB database. Graceful Error Handling: Redirect users to a custom error page if Google login fails, rather than letting the app crash or show a generic error. How This Fits Into the Zero to SaaS Journey Authentication is the foundation of the user experience. Once you have established who the user is, you can: Store their specific data in MongoDB. Link their account to a Stripe Customer ID for billing. Provide a personalized Build SaaS Dashboard Next.js Tailwind . Without a secure auth system, your SaaS cannot function because you cannot identify who to charge or whose data to display. Real-World Use Case: The Productivity Tool Imagine you are building a SaaS called TaskFlow. A user arrives at your landing page and clicks Get Started. They click Continue with Google. Auth.js redirects them to Google's secure portal. After they approve, Google sends a token back to your auth.ts handler. Auth.js checks your MongoDB. Since this is a new user, it automatically creates a new record in your users collection. The user is redirected to /dashboard, where your server component greets them: "Welcome!" Action Plan: What to Build Next To master this lesson, I want you to complete these four tasks: Initialize the Project: Set up a fresh Next.js project and install the dependencies. Configure Google Cloud: Go to the Google Cloud Console, create a project, and get your OAuth credentials. Build the Login Page: Use the Tailwind/DaisyUI code provided to create your own branded login screen. Test the Middleware: Create a protected /dashboard page and try to access it while logged out to ensure you are redirected. Take Your SaaS to the Next Level Building a secure login system is just the beginning. If you want to skip the trial and error and follow a proven path to a launched product, check out our comprehensive Zero to SaaS Next.js Course . We dive deep into advanced patterns, multi-tenant security, and production-ready deployments. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Esimit Karlgusta Follow Full Stack Developer Location Earth, for now :) Education BSc. IT Work Full Stack Developer Joined Mar 31, 2020 More from Esimit Karlgusta How to Handle Stripe and Paystack Webhooks in Next.js (The App Router Way) # api # nextjs # security # tutorial Stop Coding Login Screens: A Senior Developer’s Guide to Building SaaS That Actually Ships # webdev # programming # beginners # tutorial Zero to SaaS vs ShipFast, Which One Actually Helps You Build a Real SaaS? # nextjs # beginners # webdev # programming 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Help The latest help documentation, tips and tricks from the DEV Community. Help > Customizing Your Feed Customizing Your Feed In this article The "Feed" Tags Follow Tags Hide Tags Users Follow Users Block Users Your Reading List Common Questions What about my post's Google ranking? Tailor your reading experience on DEV to suit your preferences. The "Feed" The home page is tailored to each individual DEV member based on what they're following. Every now and then, the DEV Team may "pin" a post to the homepage if it's an announcement that is relevant to all folks, but these are generally posts from the DEV Team. Your feed is where you'll discover a diverse range of articles published by developers worldwide. You can filter the content displayed on your feed based on the type of articles you want to read. Currently, we offer three feed sort options: Relevant, Latest, and Top. Follow tags and users to customize your feed and discover content tailored to your interests. Utilize Subscription Options: With subscription indicators, you can subscribe to new articles from users or organizations you follow, as well as through any of your existing comment subscriptions. Easily manage your subscriptions and unsubscribe from any article or thread that's becoming too popular. With these features, you'll never miss out on an interesting discussion happening on DEV. Stay informed and engaged with the latest comments and articles tailored to your interests. Tags Follow Tags Tags are unique keywords attached to posts to categorize related articles under specific and defined groups. They cover a wide range of topics and feature thousands of posts, from coding tutorials to career advice, catering to both beginners and experienced developers. Following tags on DEV means subscribing to updates and content related to specific topics of interest. By following a tag, you'll see relevant posts in your feed or notifications, enabling you to stay informed, personalize your experience, and connect with others who share similar interests within the community. Hide Tags Just as you can follow tags, you can also hide them. Articles with hidden tags will no longer appear in your Relevant feed, providing you with a more tailored browsing experience. Hiding tags gives you greater control over your feed. Just follow these steps: Tags Page: Visit the tags page and use the search feature to find and hide specific tags. Dashboard: Navigate to the "Following tags" section on your dashboard. Press the three dots to access the hide option and conceal tags from your feed. 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To access these articles, simply navigate to your profile icon, click on "Reading List," and you'll find all your saved posts there." Common Questions What about my post's Google ranking? You can set the canonical_url of your post before publishing so that Google knows where to send the link juice (that precious, precious link juice). 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/t/robotics | Robotics - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close # robotics Follow Hide Create Post Older #robotics posts 1 2 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu AI in Education: Can Robots Really Grade Essays? Adnan Arif Adnan Arif Adnan Arif Follow Jan 4 AI in Education: Can Robots Really Grade Essays? # ai # machinelearning # robotics Comments Add Comment 4 min read The Loop Changes Everything: Why Embodied AI Breaks Current Alignment Approaches Eugene Oleinik Eugene Oleinik Eugene Oleinik Follow Jan 2 The Loop Changes Everything: Why Embodied AI Breaks Current Alignment Approaches # aisafety # robotics # alignment # systemsarchitecture Comments Add Comment 5 min read 2026-01-02 Daily Robotics News Dan Dan Dan Follow Jan 2 2026-01-02 Daily Robotics News # robotics Comments Add Comment 3 min read DEV Track Spotlight: Control Humanoid Robots and Drones with Voice and Agentic AI (DEV313) Gunnar Grosch Gunnar Grosch Gunnar Grosch Follow for AWS Dec 26 '25 DEV Track Spotlight: Control Humanoid Robots and Drones with Voice and Agentic AI (DEV313) # aws # ai # iot # robotics 1 reaction Comments Add Comment 7 min read Automating Hazard Detection: An AI-Powered Robotics Case Study Hemanath Kumar J Hemanath Kumar J Hemanath Kumar J Follow Dec 26 '25 Automating Hazard Detection: An AI-Powered Robotics Case Study # casestudy # ai # robotics # safetytech Comments Add Comment 2 min read Securing High-Risk Zones: An Integrated RFID and Autonomous Drone Surveillance System Ashreya Bhutani Ashreya Bhutani Ashreya Bhutani Follow Dec 22 '25 Securing High-Risk Zones: An Integrated RFID and Autonomous Drone Surveillance System # systemdesign # robotics # iot # security Comments Add Comment 4 min read Radxa ROCK 5 vs Raspberry Pi 5 vs Kiwi Pi 5: A Detailed Comparison of Modern Single-Board Computers Leonard Liao Leonard Liao Leonard Liao Follow Dec 22 '25 Radxa ROCK 5 vs Raspberry Pi 5 vs Kiwi Pi 5: A Detailed Comparison of Modern Single-Board Computers # robotics # iot # performance # linux 2 reactions Comments Add Comment 2 min read 2025-12-21 Daily Robotics News Dan Dan Dan Follow Dec 21 '25 2025-12-21 Daily Robotics News # robotics Comments Add Comment 9 min read Hey There! DOM On the Way! Karthigeyan G Karthigeyan G Karthigeyan G Follow Dec 20 '25 Hey There! DOM On the Way! # robotics # 3dprinting # iot # raspberrypi Comments Add Comment 1 min read 2025-12-18 Daily Robotics News Dan Dan Dan Follow Dec 18 '25 2025-12-18 Daily Robotics News # robotics Comments Add Comment 3 min read 2025-12-17 Daily Robotics News Dan Dan Dan Follow Dec 17 '25 2025-12-17 Daily Robotics News # robotics Comments Add Comment 3 min read 2025-12-16 Daily Robotics News Dan Dan Dan Follow Dec 16 '25 2025-12-16 Daily Robotics News # robotics Comments Add Comment 3 min read Awesome Robots Digest - Issue #13 - December 5, 2025 Bob Jiang | awesomerobots Bob Jiang | awesomerobots Bob Jiang | awesomerobots Follow Dec 16 '25 Awesome Robots Digest - Issue #13 - December 5, 2025 # digest # newsletter # robotics # ai Comments Add Comment 7 min read DEVLOG – How to Move Straight in a Line? Someone. Someone. Someone. Follow Dec 14 '25 DEVLOG – How to Move Straight in a Line? # robotics # algorithms # physics Comments Add Comment 3 min read ReGenNexus Just Learned Some New Tricks (v0.2.6) ReGen ReGen ReGen Follow Dec 4 '25 ReGenNexus Just Learned Some New Tricks (v0.2.6) # opensource # mcp # robotics # python Comments Add Comment 2 min read Sensing the Invisible: Bringing High-Resolution Touch to Your Robot Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Dec 4 '25 Sensing the Invisible: Bringing High-Resolution Touch to Your Robot # robotics # ai # sensors # haptics Comments Add Comment 2 min read Comparing Data Management Tools for Robotics AnthonyCvn AnthonyCvn AnthonyCvn Follow for ReductStore Dec 4 '25 Comparing Data Management Tools for Robotics # robotics # ros 5 reactions Comments Add Comment 6 min read Adaptive Gripping: Bridging the Dexterity Gap in Robotics Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Dec 1 '25 Adaptive Gripping: Bridging the Dexterity Gap in Robotics # robotics # automation # hardware # ai Comments Add Comment 2 min read Beyond the Pinch: Vacuum Grippers Redefining Robotic Dexterity Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Nov 30 '25 Beyond the Pinch: Vacuum Grippers Redefining Robotic Dexterity # robotics # automation # engineering # hardware Comments Add Comment 2 min read The CloudAIoT 3-Layer Reference Architecture TANIYAMA Ryoji TANIYAMA Ryoji TANIYAMA Ryoji Follow Nov 29 '25 The CloudAIoT 3-Layer Reference Architecture # iot # architecture # embedded # robotics Comments Add Comment 6 min read AI Takes the Helm: Autonomous Task Assignment Revolutionizes Construction by Arvind Sundararajan Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Dec 3 '25 AI Takes the Helm: Autonomous Task Assignment Revolutionizes Construction by Arvind Sundararajan # ai # robotics # construction # machinelearning 1 reaction Comments Add Comment 2 min read Maglev-Pentabot: From Factory Floor to Surgical Precision? The Future of Non-Contact Manipulation Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Nov 30 '25 Maglev-Pentabot: From Factory Floor to Surgical Precision? The Future of Non-Contact Manipulation # robotics # ai # machinelearning # automation Comments Add Comment 2 min read JavaFX In Action #24 with Florian Enner about Robot 3D Visualizations and Charts Frank Delporte Frank Delporte Frank Delporte Follow Dec 4 '25 JavaFX In Action #24 with Florian Enner about Robot 3D Visualizations and Charts # java # javafx # 3d # robotics Comments Add Comment 2 min read Levitating Precision: Reinforcement Learning for Non-Contact Robotics Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Nov 28 '25 Levitating Precision: Reinforcement Learning for Non-Contact Robotics # ai # robotics # machinelearning # python Comments Add Comment 2 min read Hybrid Grasping: The Next Leap in Robotic Dexterity Arvind SundaraRajan Arvind SundaraRajan Arvind SundaraRajan Follow Nov 29 '25 Hybrid Grasping: The Next Leap in Robotic Dexterity # robotics # automation # engineering # hardware Comments Add Comment 2 min read loading... trending guides/resources Build Your Own WiFi-Controlled Drone with ESP32 (Beginner-Friendly) Building a Professional PX4 Development Environment with Docker, ROS2, and VS Code Building an IMU Simulator from the Ground Up: A Journey Through Inertial Navigation I Built a WebSocket Server to Stream iPhone LiDAR and IMU Data The Future of Home Automation Just Arrived: 1X Technologies NEO Humanoid Robot Reverse Engineering the M1C1 LiDAR: cracking the protocol without documentation Decoding Movement: Emulating Biological Motion for Smarter Robots Radxa ROCK 5 vs Raspberry Pi 5 vs Kiwi Pi 5: A Detailed Comparison of Modern Single-Board Computers The Loop Changes Everything: Why Embodied AI Breaks Current Alignment Approaches Levitating Precision: Reinforcement Learning for Non-Contact Robotics How to Fully Integrate CoppeliaSim in Ubuntu (Command Line & Desktop) Beyond Behavior Trees: Unleashing Smarter Robots with Executable Knowledge by Arvind Sundararajan CNNs: from a beginner's point of view Distributed Storage in Mobile Robotics Awesome Robots Digest - Issue #13 - December 5, 2025 Gravity? Who Needs It: AI-Powered Levitation for Next-Gen Robotics Is it worth it, to reinvent the wheel!? Untouchable: The Future of Robotics is Magnetic Beyond Autopilot: Giving Robots the Gift of Self-Doubt Contributing to roslibjs: From Defeat to Merged PR 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. 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https://socket.io/docs/v4/namespaces/ | Namespaces | Socket.IO Skip to main content Latest blog post (July 25, 2024): npm package provenance . Socket.IO Docs Guide Tutorial Examples Emit cheatsheet Server API Client API Ecosystem Help Troubleshooting Stack Overflow GitHub Discussions Slack News Blog Twitter Tools CDN Admin UI About FAQ Changelog Roadmap Become a sponsor 4.x 4.x 3.x 2.x Changelog English English Español Français Português (Brasil) 中文（中国） Search Socket.IO Documentation Server Client Events Adapters Advanced Namespaces Custom parser Admin UI Usage with PM2 Load testing Performance tuning Migrations Miscellaneous Advanced Namespaces Version: 4.x On this page Namespaces A Namespace is a communication channel that allows you to split the logic of your application over a single shared connection (also called "multiplexing"). Introduction Each namespace has its own: event handlers io . of ( "/orders" ) . on ( "connection" , ( socket ) => { socket . on ( "order:list" , ( ) => { } ) ; socket . on ( "order:create" , ( ) => { } ) ; } ) ; io . of ( "/users" ) . on ( "connection" , ( socket ) => { socket . on ( "user:list" , ( ) => { } ) ; } ) ; rooms const orderNamespace = io . of ( "/orders" ) ; orderNamespace . on ( "connection" , ( socket ) => { socket . join ( "room1" ) ; orderNamespace . to ( "room1" ) . emit ( "hello" ) ; } ) ; const userNamespace = io . of ( "/users" ) ; userNamespace . on ( "connection" , ( socket ) => { socket . join ( "room1" ) ; // distinct from the room in the "orders" namespace userNamespace . to ( "room1" ) . emit ( "holà" ) ; } ) ; middlewares const orderNamespace = io . of ( "/orders" ) ; orderNamespace . use ( ( socket , next ) => { // ensure the socket has access to the "orders" namespace, and then next ( ) ; } ) ; const userNamespace = io . of ( "/users" ) ; userNamespace . use ( ( socket , next ) => { // ensure the socket has access to the "users" namespace, and then next ( ) ; } ) ; Possible use cases: you want to create a special namespace that only authorized users have access to, so the logic related to those users is separated from the rest of the application const adminNamespace = io . of ( "/admin" ) ; adminNamespace . use ( ( socket , next ) => { // ensure the user has sufficient rights next ( ) ; } ) ; adminNamespace . on ( "connection" , socket => { socket . on ( "delete user" , ( ) => { // ... } ) ; } ) ; your application has multiple tenants so you want to dynamically create one namespace per tenant const workspaces = io . of ( / ^\/\w+$ / ) ; workspaces . on ( "connection" , socket => { const workspace = socket . nsp ; workspace . emit ( "hello" ) ; } ) ; Main namespace Until now, you interacted with the main namespace, called / . The io instance inherits all of its methods: io . on ( "connection" , ( socket ) => { } ) ; io . use ( ( socket , next ) => { next ( ) } ) ; io . emit ( "hello" ) ; // are actually equivalent to io . of ( "/" ) . on ( "connection" , ( socket ) => { } ) ; io . of ( "/" ) . use ( ( socket , next ) => { next ( ) } ) ; io . of ( "/" ) . emit ( "hello" ) ; Some tutorials may also mention io.sockets , it's simply an alias for io.of("/") . io . sockets === io . of ( "/" ) Custom namespaces To set up a custom namespace, you can call the of function on the server-side: const nsp = io . of ( "/my-namespace" ) ; nsp . on ( "connection" , socket => { console . log ( "someone connected" ) ; } ) ; nsp . emit ( "hi" , "everyone!" ) ; Client initialization Same-origin version: const socket = io ( ) ; // or io("/"), the main namespace const orderSocket = io ( "/orders" ) ; // the "orders" namespace const userSocket = io ( "/users" ) ; // the "users" namespace Cross-origin/Node.js version: const socket = io ( "https://example.com" ) ; // or io("https://example.com/"), the main namespace const orderSocket = io ( "https://example.com/orders" ) ; // the "orders" namespace const userSocket = io ( "https://example.com/users" ) ; // the "users" namespace In the example above, only one WebSocket connection will be established, and the packets will automatically be routed to the right namespace. Please note that multiplexing will be disabled in the following cases: multiple creation for the same namespace const socket1 = io ( ) ; const socket2 = io ( ) ; // no multiplexing, two distinct WebSocket connections different domains const socket1 = io ( "https://first.example.com" ) ; const socket2 = io ( "https://second.example.com" ) ; // no multiplexing, two distinct WebSocket connections usage of the forceNew option const socket1 = io ( ) ; const socket2 = io ( "/admin" , { forceNew : true } ) ; // no multiplexing, two distinct WebSocket connections Dynamic namespaces It is also possible to dynamically create namespaces, either with a regular expression: io . of ( / ^\/dynamic-\d+$ / ) ; or with a function: io . of ( ( name , auth , next ) => { next ( null , true ) ; // or false, when the creation is denied } ) ; You can have access to the new namespace in the connection event: io . of ( / ^\/dynamic-\d+$ / ) . on ( "connection" , ( socket ) => { const namespace = socket . nsp ; } ) ; The return value of the of() method is what we call the parent namespace, from which you can: register middlewares const parentNamespace = io . of ( / ^\/dynamic-\d+$ / ) ; parentNamespace . use ( ( socket , next ) => { next ( ) } ) ; The middleware will automatically be registered on each child namespace. broadcast events const parentNamespace = io . of ( / ^\/dynamic-\d+$ / ) ; parentNamespace . emit ( "hello" ) ; // will be sent to users in /dynamic-1, /dynamic-2, ... caution Existing namespaces have priority over dynamic namespaces. For example: // register "dynamic-101" namespace io . of ( "/dynamic-101" ) ; io . of ( / ^\/dynamic-\d+$ / ) . on ( "connection" , ( socket ) => { // will not be called for a connection on the "dynamic-101" namespace } ) ; Complete API The complete API exposed by the Namespace instance can be found here . Edit this page Last updated on Nov 15, 2025 Previous Azure Service Bus adapter Next Custom parser Introduction Main namespace Custom namespaces Client initialization Dynamic namespaces Complete API Documentation Guide Tutorial Examples Server API Client API Help Troubleshooting Stack Overflow GitHub Discussions Slack News Blog Twitter Tools CDN Admin UI About FAQ Changelog Roadmap Become a sponsor Copyright © 2026 Socket.IO | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Testing Follow Hide Find those bugs before your users do! 🐛 Create Post Older #testing posts 8 9 10 11 12 13 14 15 16 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Playwright Visual Testing: Why Passing Tests Still Ship Broken UI TestDino TestDino TestDino Follow Dec 27 '25 Playwright Visual Testing: Why Passing Tests Still Ship Broken UI # playwright # testing # ai # software Comments Add Comment 4 min read Modern Frontend Frameworks Are Failing at Testing Kevin Julián Martínez Escobar Kevin Julián Martínez Escobar Kevin Julián Martínez Escobar Follow Dec 27 '25 Modern Frontend Frameworks Are Failing at Testing # webdev # react # testing # frontend 1 reaction Comments Add Comment 4 min read 10 Ways to Improve App Performance Across Devices in 2026 (Short +Proved) Ronika Kashyap Ronika Kashyap Ronika Kashyap Follow Dec 8 '25 10 Ways to Improve App Performance Across Devices in 2026 (Short +Proved) # testing # mobile # ai # webdev 20 reactions Comments Add Comment 5 min read Compare PDFs Online for Free with Diff Guru - Fast, Secure & Accurate Diff Guru Diff Guru Diff Guru Follow Dec 5 '25 Compare PDFs Online for Free with Diff Guru - Fast, Secure & Accurate # productivity # testing Comments Add Comment 2 min read The Rise of AI in Testing: From Unit Tests to Full Workflow Validation Alok Kumar Alok Kumar Alok Kumar Follow Dec 4 '25 The Rise of AI in Testing: From Unit Tests to Full Workflow Validation # e2e # ai # testing # endtoendtesting Comments Add Comment 3 min read 🔧 Comparative Analysis of Testing Management Tools with Real CI/CD Pipelines Christian Dennis HINOJOSA MUCHO Christian Dennis HINOJOSA MUCHO Christian Dennis HINOJOSA MUCHO Follow Dec 3 '25 🔧 Comparative Analysis of Testing Management Tools with Real CI/CD Pipelines # testing # cicd # devops # tooling Comments 1 comment 2 min read Dominando las Pruebas de API con Postman: Ejemplos del Mundo Real Renzo Fernando LOYOLA VILCA CHOQUE Renzo Fernando LOYOLA VILCA CHOQUE Renzo Fernando LOYOLA VILCA CHOQUE Follow Dec 4 '25 Dominando las Pruebas de API con Postman: Ejemplos del Mundo Real # api # testing # postman # automation Comments Add Comment 3 min read Business Logic Is the Real Product (So I Built logicrepo) alexdrimbe alexdrimbe alexdrimbe Follow Jan 3 Business Logic Is the Real Product (So I Built logicrepo) # architecture # testing # devtools # opensource Comments 1 comment 2 min read Selenium vs. Playwright vs. Cypress (2025): The Ultimate Comparison Guide teaganga teaganga teaganga Follow Dec 4 '25 Selenium vs. Playwright vs. Cypress (2025): The Ultimate Comparison Guide # webdev # testing # selenium # playwright Comments Add Comment 4 min read Reducing Flaky Tests in CI/CD: A Complete Playbook for Engineering Teams Alok Kumar Alok Kumar Alok Kumar Follow Dec 4 '25 Reducing Flaky Tests in CI/CD: A Complete Playbook for Engineering Teams # flakytest # e2e # testing # opensource Comments Add Comment 4 min read Ideal Testing framework app Yogesh Galav Yogesh Galav Yogesh Galav Follow Dec 4 '25 Ideal Testing framework app # testing # e2etesting # playwright # puppeteer Comments Add Comment 1 min read step2 Query Filter Query Filter Query Filter Follow Dec 3 '25 step2 # code # sql # testing # database Comments Add Comment 1 min read Demystifying Playwright Test Agents' seed.spec.ts: What I Learned from Reading the MCP Code Ken Fukuyama Ken Fukuyama Ken Fukuyama Follow Dec 5 '25 Demystifying Playwright Test Agents' seed.spec.ts: What I Learned from Reading the MCP Code # playwright # ai # typescript # testing Comments Add Comment 6 min read Building an AI-Powered Code Editor: Browser Test Runner component Francesco Marconi Francesco Marconi Francesco Marconi Follow Jan 6 Building an AI-Powered Code Editor: Browser Test Runner component # showdev # react # testing # tooling 1 reaction Comments Add Comment 2 min read Turn Playwright Reports into Actionable Insights with TestDino: The Complete Guide TestDino TestDino TestDino Follow Dec 26 '25 Turn Playwright Reports into Actionable Insights with TestDino: The Complete Guide # playwright # ai # testing # automation Comments Add Comment 4 min read Medusa Testing Guide: How to Test Your E-Commerce Store for Scalability and Reliability Michał Miler Michał Miler Michał Miler Follow for u11d Dec 3 '25 Medusa Testing Guide: How to Test Your E-Commerce Store for Scalability and Reliability # medusa # ecommerce # testing Comments Add Comment 7 min read A/B Testing for QA: How to Validate Features with Real User Data Matt Calder Matt Calder Matt Calder Follow Dec 3 '25 A/B Testing for QA: How to Validate Features with Real User Data # 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https://dev.to/kafeel-ahmad/how-to-replace-over-complicated-ngrx-stores-with-angular-signals-without-losing-control-18f7#comments | How To Replace Over-Complicated NgRx Stores With Angular Signals — Without Losing Control - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse kafeel ahmad Posted on Jan 7 How To Replace Over-Complicated NgRx Stores With Angular Signals — Without Losing Control # javascript # angular # webdev # beginners Hey, picture this: you're knee-deep in an Angular app, drowning in NgRx actions, reducers, effects, and selectors just to flip a simple boolean, load some todos, or filter a list. It's battle-tested for massive enterprise beasts where every change needs auditing across huge teams, but for most real-world projects? It's total overkill — endless boilerplate files that steal your dev joy and slow you down. Then Angular Signals burst onto the scene like a breath of fresh air. Native, lightweight reactivity that slashes 70% of that NgRx ceremony while making your app scream faster — no more Zone.js crutches or unpredictable re-renders. Signals track dependencies surgically, updating only what needs to change, and they're downright fun to use. What if you could ditch NgRx entirely and build clean, scalable state right in injectable services? That's our mission here: a practical guide to migrating with update() for bulletproof immutable changes (spread those arrays and objects!), smart patterns for global state sharing, computed values that derive on-the-fly, and side effects that sync with localStorage or APIs without the drama. Skip the heavy NgRx SignalStore—we're going pure Signals for maximum simplicity and speed. Whether you're a dev sick of verbosity, a tech lead craving happier teams that ship faster, or a stakeholder eyeing cheaper, zippier apps — this no-nonsense path delivers. Ready to reclaim your weekends? Let's dive in and make state management feel effortless again. NgRx Pain Points and Signals Advantages Let's get real: NgRx is like hiring a full construction crew to hang a single picture frame — it's powerhouse stuff for massive enterprise cathedrals, but for everyday apps like dashboards, e-commerce carts, or internal tools, it buries you under mountains of boilerplate that kill momentum. Signals flip that script entirely, delivering lightweight reactive magic that slashes ceremony, accelerates development, and turns maintenance into something humans actually enjoy — even for teams dodging RxJS rabbit holes. Why NgRx Feels Like Overkill in Real-World Projects Imagine kicking off a simple feature: a user counter for your analytics dashboard. NgRx demands the full Redux ritual — create counter.actions.ts with increment() and decrement() creators, craft counter.reducer.ts to immutably switch on those actions, define counter.state.ts interfaces, build counter.selectors.ts for peeking at state, then wire a feature module with StoreModule.forFeature() . That's 5-10 files minimum, hundreds of lines just to count clicks. New hires stare at the folder explosion, onboarding drags into weeks, and tweaking logic means hunting across a dozen spots ripe for copy-paste bugs. Reddit threads overflow with war stories: "Lost a full week mastering boilerplate for a basic todo list". Non-enterprise reality? Startups and mid-sized teams crave velocity — this overhead murders it. Unit testing drowns in Store mocks and marble diagrams. Debugging? Good luck tracing dispatched actions through the Redux time machine. Small apps rarely need a god-store; local services suffice until regret hits at scale. No surprise savvy teams skip NgRx until truly forced, often never. Signals Fundamentals: Reactive Primitives Anyone Can Grasp Signals bring Angular's reactivity into the 21st century — simple primitives that pack a punch without RxJS esoterica. Kick off with signal(initialValue) : wrap any data (primitives, objects, arrays) and Angular auto-tracks reads/writes for precise notifications. Update via set(newValue) for direct swaps, update(fn => transformedValue) for safe derivations—Angular figures out exactly what to refresh, no manual plumbing. Next, computed(() => yourLogic()) crafts read-only derived state that smartly recalculates only when dependencies budge, caching aggressively to nix waste. Side effects? effect(() => { sideEffect(signalValue()) }) fires precisely on changes—log analytics, sync APIs, trigger animations—subscription-free, leak-proof, running in batched microtasks for silky smoothness. Glitches? Banished. The graph ensures consistent ordering. Managers love this: codebases shrink 50%+, bugs plummet, juniors ship Day 1 sans Redux seminary. Scalability Showdown: Signals Leave NgRx in the Dust NgRx leans on zone.js change detection — monkey-patching every async event to scan your entire app tree. Small apps? Tolerable. Scale to 100+ components? Sluggish repaint marathons. Signals unlock fine-grained reactivity: only dirty components re-render, turbocharging zoneless Angular (v16 experiments now v18 production). Benchmarks scream victory — 2–5x faster list renders, form updates, dashboard charts, especially on mobile. Signals prioritize immutability via update() , birthing predictable fresh values—like signalArray.update(arr => [...arr, newItem]) for clean array growth. NgRx clings to RxJS streams and zone pollution; Signals scale fluidly from component locals to app-wide services, no Big Bang store refactor needed. Growing teams pivot seamlessly as complexity creeps in. Hands-On Demo: Counter Face-Off That Converts Skeptics Time to build: simple increment/decrement/reset counter. NgRx gauntlet? Architect a village: counter.actions.ts : Action creators increment() , decrement() counter.reducer.ts : Immutable switch returning new state slices counter.state.ts : { count: number } interface counter.selectors.ts : selectCount(state) counter.module.ts : StoreModule.forFeature('counter', reducer) Component boilerplate: store.dispatch() , store.select() , OnDestroy cleanup 300+ lines of ceremony, typo-prone indirection. Signals? One standalone component, pure bliss: import { Component , signal, computed } from '@angular/core' ; @Component ({ selector : 'app-counter' , template : ` <h2>Count: {{ count() }} (Double: {{ double() }})</h2> <button (click)="increment()">+1</button> <button (click)="decrement()">-1</button> <button (click)="reset()">Reset</button> ` , }) export class CounterComponent { count = signal< number >( 0 ); double = computed ( () => this . count () * 2 ); increment (): void { this . count . update ( ( v: number ) => v + 1 ); } decrement (): void { this . count . update ( ( v: number ) => v - 1 ); } reset (): void { this . count . set ( 0 ); } } Spot the revolution? Typed TypeScript bliss — IntelliSense dances, refactors fearless, compile-time guards halt bugs. Test? Invoke methods directly, mock nothing. Share via injectable service? provideIn: 'root' . Scales to carts, forms, auth without breaking sweat. Stakeholders beam at velocity; engineers celebrate simplicity. Ditch the sledgehammer—Signals are your scalpel. Building a Signals-Based State Service Imagine converting a basic Angular service into a reactive "signals store" — your app's smart command center. Group related signals, expose public readonly views, control private mutations. Ditch change detection headaches for precise, automatic updates. Perfect for todos, carts, dashboards. Let's build one, then a production todo app under 100 lines. Why Signals Stores Win Skip heavy libraries. Injectable services become lightweight stores : zero deps, pure Angular, fine-grained reactivity. Managers : Less code, fewer bugs, faster apps. Devs : Toggle one item? Only that row repaints. Scales to enterprise. Store Foundation (30 lines) import { Injectable , signal, computed, effect } from '@angular/core' ; export interface Todo { id : number ; text : string ; completed : boolean ; } @Injectable ({ providedIn : 'root' }) export class TodoStore { // Private state private _todos = signal< Todo []>([]); private _filter = signal< 'all' | 'active' | 'completed' >( 'all' ); private _loading = signal ( false ); // Public reads public readonly todos = this . _todos . asReadonly (); public readonly filter = this . _filter . asReadonly (); public readonly loading = this . _loading . asReadonly (); // Derived state public readonly filteredTodos = computed ( () => { const f = this . _filter (); const todos = this . _todos (); return f === 'active' ? todos. filter ( t => !t. completed ) : f === 'completed' ? todos. filter ( t => t. completed ) : todos; }); public readonly totalTodos = computed ( () => this . todos (). length ); public readonly activeCount = computed ( () => this . todos (). filter ( t => !t. completed ). length ); public readonly completedCount = computed ( () => this . totalTodos () - this . activeCount ()); } Magic : Computeds only rerun when dependencies change. Effects: Auto-Sync (5 lines) constructor ( ) { effect ( () => { const todos = this . _todos (); if (todos. length ) localStorage . setItem ( 'todos' , JSON . stringify (todos)); }); } Swaps easily for API calls. CRUD: Immutable Only (40 lines) addTodo ( text : string ): void { const trimmed = text?. trim (); if (!trimmed) return ; this . _todos . update ( todos => [...todos, { id : Date . now (), text : trimmed, completed : false }]); } toggleTodo ( id : number ): void { this . _todos . update ( todos => todos. map ( t => t. id === id ? {...t, completed : !t. completed } : t )); } editTodo ( id : number , text : string ): void { const trimmed = text?. trim (); if (!trimmed) return ; this . _todos . update ( todos => todos. map ( t => t. id === id ? {...t, text : trimmed} : t )); } removeTodo ( id : number ): void { this . _todos . update ( todos => todos. filter ( t => t. id !== id)); } setFilter ( filter : 'all' | 'active' | 'completed' ): void { this . _filter . set (filter); } clearCompleted (): void { this . _todos . set ( this . todos (). filter ( t => !t. completed )); } async loadTodos (): Promise < void > { this . _loading . set ( true ); try { await new Promise ( r => setTimeout (r, 800 )); const saved = localStorage . getItem ( 'todos' ); if (saved) this . _todos . set ( JSON . parse (saved)); } finally { this . _loading . set ( false ); } } Key : Always return new arrays/objects. Reactivity guaranteed. Complete Todo App Reactive forms + modern templates. Logic: 25 lines. import { Component , signal, inject } from '@angular/core' ; import { FormControl , ReactiveFormsModule , Validators } from '@angular/forms' ; import { CommonModule } from '@angular/common' ; import { TodoStore , Todo } from './todo.store' ; @Component ({ selector : 'app-todo' , standalone : true , imports : [ CommonModule , ReactiveFormsModule ], template : ` <main class="app"> <header> <h1>Signal Todos</h1> <div>Total: {{store.totalTodos()}} | Active: {{store.activeCount()}}</div> @let loading = store.loading(); @if (loading) { <div>⏳ Loading...</div> } </header> <form (ngSubmit)="addTodo()" class="add-form"> <input [formControl]="newTodoCtrl" placeholder="New todo..." /> <button type="submit" [disabled]="newTodoCtrl.invalid">Add</button> </form> <nav class="filters"> @for (let f of filterOptions; track f) { <button [class.active]="store.filter() === f" (click)="store.setFilter(f)"> {{f[0].toUpperCase() + f.slice(1)}} </button> } </nav> @let todos = store.filteredTodos(); @if (todos.length) { <ul> @for (let todo of todos; track todo.id) { <li [class.done]="todo.completed"> <input type="checkbox" [checked]="todo.completed" (change)="store.toggleTodo(todo.id)" /> @if (!editingId() || editingId() !== todo.id) { <span (dblclick)="editTodo(todo)">{{todo.text}}</span> } @else { <input [formControl]="editCtrl" (keyup.enter)="saveEdit()" (blur)="saveEdit()" autofocus /> } <button (click)="store.removeTodo(todo.id)">Delete</button> </li> } </ul> @let done = store.completedCount(); @if (done) { <button (click)="store.clearCompleted()">Clear {{done}} done</button> } } @else { <p>No {{store.filter()}} todos</p> } </main> ` , styles : [ ` .app { max-width: 600px; margin: 2rem auto; padding: 1rem; } .add-form { display: flex; gap: 1rem; margin: 2rem 0; } .filters { display: flex; gap: 0.5rem; justify-content: center; margin: 2rem 0; } .filters button.active { background: #3b82f6; color: white; } li { display: flex; gap: 1rem; align-items: center; padding: 1rem; border: 1px solid #eee; } li.done { opacity: 0.6; text-decoration: line-through; } ` ] }) export class TodoComponent { protected store = inject ( TodoStore ); protected newTodoCtrl = new FormControl ( '' , Validators . required ); protected editCtrl = new FormControl ( '' ); protected editingId = signal< number | null >( null ); protected filterOptions = [ 'all' , 'active' , 'completed' ] as const ; constructor ( ) { this . store . loadTodos (); } addTodo (): void { const text = this . newTodoCtrl . value ?. trim (); if (text) { this . store . addTodo (text); this . newTodoCtrl . reset (); } } editTodo ( todo : Todo ): void { this . editingId . set (todo. id ); this . editCtrl . setValue (todo. text ); } saveEdit (): void { const id = this . editingId (); const text = this . editCtrl . value ?. trim (); if (id && text) this . store . editTodo (id, text); this . editingId . set ( null ); this . editCtrl . reset (); } } The Power Unleashed 85-line service + 25-line component = production todo app with: ✅ Full CRUD operations ✅ Smart filtering ✅ LocalStorage sync ✅ Loading states ✅ Inline editing ✅ Bulk actions ✅ Form validation ✅ Modern Angular 18+ ( @for/@if , signals) Scale it : Shopping carts? User profiles? Analytics? Same pattern. Immutable updates + computed derivations = unbeatable performance. Signals stores = simple, reactive, scalable. Your new Angular default. Migration Strategy from NgRx to Signals Hey folks, let's dive into migrating from NgRx to Angular Signals. Everyone's buzzing about Signals because they make state management way simpler and faster — no more drowning in actions, reducers, and endless selector chains. The beauty is you don't have to burn your NgRx setup to the ground. Start small with UI state like toggles and forms, keep NgRx for the heavy global stuff like user auth, and gradually shift over. It's less scary than it sounds, and your app gets noticeably snappier along the way. Step-by-Step Refactor Process First up, grab a coffee and map out your state. Ask yourself: is this dialog open state local to one component, or does it need to sync across the whole app? Local stuff screams for Signals. Global (think shared product catalogs) — leave it with NgRx for now. Next, tackle those selectors. Instead of store.select(selectCart) | async everywhere, use NgRx's own selectSignal() wrapped in a computed() . Ditch the async pipes – your templates breathe again. Then swap actions for service methods. Imagine dispatch(addToCart(item)) becomes cartService.add(item) with a clean this.cart.update(items => [...items, item]) . Here's how I'd tackle it over a few sprints: Audit your state : Local = Signals. Global = NgRx. Use Nx dependency graphs or just grep your codebase. Selectors first : readonly cartItems = this.store.selectSignal(selectCartItems); – done, use cartItems() everywhere. Actions to methods : Create injectable services as the single source of truth. Test one feature at a time. Verify with Profiler : Angular DevTools shows render wins immediately. Feature flag everything. Rinse and repeat : One lazy-loaded module per week. Ship, celebrate, move on. I love how each step peels back NgRx ceremony you didn't really need. Suddenly your components are half the size. The Smart Hybrid Approach Look, NgRx is battle-tested for crazy complex flows — optimistic updates, cross-tab sync, effects with retries. Don't fight it. Let NgRx own global state, Signals handle everything else. Your renders speed up 2–3x because Signals trigger exactly what's needed, no Zone.js wakeups. Here's the real-world breakdown: NgRx vs Signals Teams mixing both report the best results — NgRx for orchestration, Signals for reactivity. Shopping apps keep order history global, cart UI local. Perfect balance. Keeping Control with Unidirectional Flow Chaos happens when every component pokes at shared state. Solution? Route everything through services. CartService becomes your gatekeeper: add(item) , remove(id) , clear() . Want to debounce rapid adds from some legacy Effect? toObservable(this.cart).pipe(debounceTime(300), takeUntilDestroyed()).subscribe(...) . Boom – RxJS and Signals play nice. Steal this service pattern: @Injectable ({ providedIn : 'root' }) export class CartService { readonly cart = signal< Item []>([]); add ( item : Item ): void { this . cart . update ( items => [...items, item]); } // Bridge old effects constructor ( ) { toObservable ( this . cart ) . pipe ( debounceTime ( 250 ), takeUntilDestroyed ()) . subscribe ( items => this . saveToLocalStorage (items)); } } Add a lint rule: "no direct signal updates outside services." Team stays sane, data flows one way. Real-World Test: Shopping Cart Migration Nothing proves this like a shopping cart refactor — everyone has one, and the wins are dramatic. Rip out the NgRx feature module. Build CartService with cartItems = signal([]) . Template goes from this mess: < p > Total: {{ cart$ | async | currency }} </ p > @for (item of cart$ | async; track item.id) { ... } To pure bliss: < p > Total: {{ cartItems().reduce((sum, i) => sum + i.price, 0) | currency }} </ p > @for (item of cartItems(); track item.id) { ... } < button ( click )= "cartService.add(item)" > Add </ button > Fire up Angular Profiler: Renders: 2x faster. Signals skip unchanged DOM. Bundle: -15KB. No more NgRx feature bloat. Memory: Fewer subscriptions = happier GC. Feature flag it: @if (useSignalsCart()) { <signal-cart /> } . A/B test Time to Interactive with real traffic. Users notice the cart feels instant. Green light? Hit wishlist next, then user settings. By checkout, half your app runs on Signals, zero outages. This isn't some pipe dream — teams shipping this weekly. Start with that cart tomorrow. You'll wonder why you waited. Conclusion So there you have it — Angular Signals are your new best friend when it comes to ditching that overwhelming pile of NgRx boilerplate so many apps wrestle with. Picture this: a single, elegant update() call lets you handle immutable state changes—like incrementing a counter or patching user data—without breaking a sweat. Everything flows predictably through lightweight, injectable services, no more chasing side effects or debugging reducer chains. Best part? You're perfectly positioned for Angular's full-on shift to reactivity, where signals power fine-grained updates and blazing performance. Honestly, for about 80% of projects, this switch means way less code, fewer late-night bugs, and templates that just… work, skipping the whole action-reducer-effect tango. Ready to jump in hands-on? Grab the AngularSpace article packed with migration examples, snag your app's simplest store (basic counter or todo list), and refactor it with update() magic. Test the waters, clock those performance gains (often 50% less code, zero downsides), and drop your before/after stories right here in the comments. Deep dive time: Swing by Angular's official Signals docs to master computed() and effect() . Check NgRx's v21 migration guide for smooth signalStore transitions. Explore Nx workspace recipes for enterprise-scale patterns . Trust me, once you try it, you'll wonder why you waited so long! Thanks for Reading 🙌 I hope these tips help you ship better, faster, and more maintainable frontend projects. Author: Karol Modelski Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse kafeel ahmad Follow Software Engineer Location Mumbai, India Work Senior Software Engineer Joined Jan 28, 2025 More from kafeel ahmad Node.js in 2026: Modern Practices You Should Be Using # webdev # node # javascript # backend Node.js Architecture Patterns for Scalable Apps (2026 Guide) # webdev # node # javascript Domain-Driven Design (DDD) with Node.js: Best Practices for Large Projects # webdev # node # javascript # beginners 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/colin_lee_0efbc2899420fa5 | Colin Lee - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions Colin Lee Creator, Founder Joined Joined on Jan 10, 2026 Personal website https://githubcard.com/ github website twitter website More info about @colin_lee_0efbc2899420fa5 Badges Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close Post 2 posts published Comment 2 comments written Tag 0 tags followed How to Create a GitHub Profile README in 2026 Colin Lee Colin Lee Colin Lee Follow Jan 10 How to Create a GitHub Profile README in 2026 # github # tooling # tutorial # product Comments Add Comment 2 min read Want to connect with Colin Lee? Create an account to connect with Colin Lee. You can also sign in below to proceed if you already have an account. Create Account Already have an account? Sign in Why GitHubCard is the Final Tool You Need for Your Github Profile Colin Lee Colin Lee Colin Lee Follow Jan 10 Why GitHubCard is the Final Tool You Need for Your Github Profile # github # tooling # tutorial # githunt Comments 1 comment 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://forem.com/bogaboga1/odoo-core-and-the-cost-of-reinventing-everything-15n1#final-thoughts | Odoo Core and the Cost of Reinventing Everything - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Boga Posted on Jan 12 Odoo Core and the Cost of Reinventing Everything # python # odoo # qweb # owl Hello, this is my first blog post ever. I’d like to share my experience working with Odoo , an open-source Enterprise Resource Planning (ERP) system, and explain why I believe many of its architectural choices cause unnecessary complexity. Odoo is a single platform that provides many prebuilt modules (mini-applications) that most companies need. For example, almost every company requires a Human Resources system to manage employee details, leaves, attendance, contracts, resignations, and more. Beyond HR, companies also need purchasing, inventory, accounting, authentication, authorization, and other systems. Odoo bundles all of these tightly coupled systems into a single installation. On paper, this sounds great — and from a business perspective, it often is. From a technical perspective , however, things get complicated very quickly. Odoo Core Components Below are the main Odoo components, ranked from least complex to most complex, and all largely developed in-house instead of relying on existing mature frameworks: Odoo HTTP Layer JSON-RPC Website routing Odoo Views XML transformed into Python and JavaScript Odoo ORM Custom inheritance system Query builder Dependency injection Caching layers Cache System Implemented from scratch WebSocket Implementation Very low-level handling Odoo HTTP Layer Odoo is not built on a standard Python web framework like Django or Flask. Instead, it implements its own HTTP framework on top of Werkzeug (a WSGI utility library). This HTTP layer introduces its own abstractions, request lifecycle, routing, and serialization logic, including JSON-RPC and website controllers. While technically impressive, it reinvents many problems that have already been solved — and battle-tested — by existing frameworks. Odoo Views In my opinion, this is one of the most problematic parts of Odoo. Instead of using standard frontend technologies, Odoo relies heavily on XML-based views . These XML files are sent to the browser and then transformed using Abstract Syntax Tree (AST) analysis into JavaScript. In other contexts (like the website), the XML may be converted into Python code and sometimes back into JavaScript again. This creates: High cognitive overhead Difficult debugging Tight coupling between backend and frontend Poor tooling support compared to modern frontend stacks It feels like building a car from raw metal just to drive from point A to point B. Odoo ORM Odoo’s ORM is not a typical ORM. It implements: A custom inheritance system (instead of using Python’s built-in one) Its own dependency injection mechanism A query builder Caching layers (LRU) Model extension via monkey-patching While powerful, this system is extremely complex and hard to reason about. Debugging model behavior often feels like navigating invisible layers of magic. WebSocket Implementation Instead of using a mature real-time framework, Odoo implements its WebSocket handling with very low-level logic, sometimes in surprisingly small and dense files. A single comment from the codebase summarizes this approach better than words ever could: The “Odoo Is Old” Argument A common defense of Odoo’s architecture is that “it’s an old system” — originally developed around 2005 using Python 2. However, this argument no longer holds. Odoo was largely rewritten from scratch around 2017 to support Python 3. At that time, many excellent frameworks already existed and had solved the same problems more cleanly, while continuing to evolve without breaking their ecosystems. Today, even small changes in Odoo’s core can break custom modules unless they are limited to simple CRUD models with minimal dependencies on core behavior. Final Thoughts Odoo is a powerful product and a successful business platform. But from a software engineering perspective, many of its design decisions prioritize control and internal consistency over maintainability, clarity, and developer experience . If you work with Odoo long enough, you stop asking “why does it work this way?” and start asking “how do I survive this upgrade?” Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Boga Follow Senior Software Engineer Joined Jan 12, 2026 Trending on DEV Community Hot 🧱 Beginner-Friendly Guide 'Maximal Rectangle' – LeetCode 85 (C++, Python, JavaScript) # programming # cpp # python # javascript The First Week at a Startup Taught Me More Than I Expected # startup # beginners # career # learning What was your win this week??? # weeklyretro # discuss 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/bogaboga1/odoo-core-and-the-cost-of-reinventing-everything-15n1#main-content | Odoo Core and the Cost of Reinventing Everything - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Boga Posted on Jan 12 Odoo Core and the Cost of Reinventing Everything # python # odoo # qweb # owl Hello, this is my first blog post ever. I’d like to share my experience working with Odoo , an open-source Enterprise Resource Planning (ERP) system, and explain why I believe many of its architectural choices cause unnecessary complexity. Odoo is a single platform that provides many prebuilt modules (mini-applications) that most companies need. For example, almost every company requires a Human Resources system to manage employee details, leaves, attendance, contracts, resignations, and more. Beyond HR, companies also need purchasing, inventory, accounting, authentication, authorization, and other systems. Odoo bundles all of these tightly coupled systems into a single installation. On paper, this sounds great — and from a business perspective, it often is. From a technical perspective , however, things get complicated very quickly. Odoo Core Components Below are the main Odoo components, ranked from least complex to most complex, and all largely developed in-house instead of relying on existing mature frameworks: Odoo HTTP Layer JSON-RPC Website routing Odoo Views XML transformed into Python and JavaScript Odoo ORM Custom inheritance system Query builder Dependency injection Caching layers Cache System Implemented from scratch WebSocket Implementation Very low-level handling Odoo HTTP Layer Odoo is not built on a standard Python web framework like Django or Flask. Instead, it implements its own HTTP framework on top of Werkzeug (a WSGI utility library). This HTTP layer introduces its own abstractions, request lifecycle, routing, and serialization logic, including JSON-RPC and website controllers. While technically impressive, it reinvents many problems that have already been solved — and battle-tested — by existing frameworks. Odoo Views In my opinion, this is one of the most problematic parts of Odoo. Instead of using standard frontend technologies, Odoo relies heavily on XML-based views . These XML files are sent to the browser and then transformed using Abstract Syntax Tree (AST) analysis into JavaScript. In other contexts (like the website), the XML may be converted into Python code and sometimes back into JavaScript again. This creates: High cognitive overhead Difficult debugging Tight coupling between backend and frontend Poor tooling support compared to modern frontend stacks It feels like building a car from raw metal just to drive from point A to point B. Odoo ORM Odoo’s ORM is not a typical ORM. It implements: A custom inheritance system (instead of using Python’s built-in one) Its own dependency injection mechanism A query builder Caching layers (LRU) Model extension via monkey-patching While powerful, this system is extremely complex and hard to reason about. Debugging model behavior often feels like navigating invisible layers of magic. WebSocket Implementation Instead of using a mature real-time framework, Odoo implements its WebSocket handling with very low-level logic, sometimes in surprisingly small and dense files. A single comment from the codebase summarizes this approach better than words ever could: The “Odoo Is Old” Argument A common defense of Odoo’s architecture is that “it’s an old system” — originally developed around 2005 using Python 2. However, this argument no longer holds. Odoo was largely rewritten from scratch around 2017 to support Python 3. At that time, many excellent frameworks already existed and had solved the same problems more cleanly, while continuing to evolve without breaking their ecosystems. Today, even small changes in Odoo’s core can break custom modules unless they are limited to simple CRUD models with minimal dependencies on core behavior. Final Thoughts Odoo is a powerful product and a successful business platform. But from a software engineering perspective, many of its design decisions prioritize control and internal consistency over maintainability, clarity, and developer experience . If you work with Odoo long enough, you stop asking “why does it work this way?” and start asking “how do I survive this upgrade?” Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Boga Follow Senior Software Engineer Joined Jan 12, 2026 Trending on DEV Community Hot 🧱 Beginner-Friendly Guide 'Maximal Rectangle' – LeetCode 85 (C++, Python, JavaScript) # programming # cpp # python # javascript The First Week at a Startup Taught Me More Than I Expected # startup # beginners # career # learning What was your win this week??? # weeklyretro # discuss 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://www.dev.to/showcase | DEV Showcase - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Showcase Showcasing the best products, companies, and open-source projects on DEV Have something you'd like to showcase? Get in touch. DEV Showcase is a new directory of great companies, products and projects that support DEV. We're working with new and existing partners to add more to the Showcase, so come back soon to see more great tools in the near future. Work #LikeABosch At Bosch, we shape the future by inventing high-quality technologies and services that spark enthusiasm and enrich people's lives. Bright Data Bright Data is a leading web data platform that helps developers collect public web data reliably and at scale. Checkly: Modern Application Monitoring Checkly is the leading monitoring platform built specifically for modern engineering teams. DevCycle: Modern Feature Management DevCycle is the first OpenFeature-native feature flagging platform, pairing managed service reliability with freedom from vendor lock-in. MongoDB MongoDB is a developer data platform that enables organizations to build and modernize applications across any scale. Neon: Serverless PostgreSQL Neon is a fully managed serverless PostgreSQL with branching, bottomless storage, and scale-to-zero capabilities. Pieces for Developers Pieces is your AI-enabled productivity tool designed to supercharge developer efficiency. Cloudinary: The Image and Video API for Developers Cloudinary is an API-first, cloud-based solution that helps automate all processes related to managing images and videos for the web. Scrimba Learn how to create mind-blowing apps powered by generative AI. Stellar Network Stellar makes it possible to create, send, and trade digital representations of all forms of money: dollars, pesos, bitcoin, pretty much anything. Let's Get Started We look forward to discussing options to help your organization reach and engage the amazing community here at DEV. Name Work Email Job Title Company Get in Touch Thanks for getting in touch! We'll reach out to you shortly. 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://music.forem.com/t/classical | Classical - Music Forem Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account Music Forem Close # classical Follow Hide orchestras & precise scores Create Post Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Why *Dhurandhar* Movie Songs Feel So Awesome 🎶 Prasoon Jadon Prasoon Jadon Prasoon Jadon Follow Jan 6 Why *Dhurandhar* Movie Songs Feel So Awesome 🎶 # indie # ambientmusic # digital # classical 3 reactions Comments Add Comment 2 min read When Music Sounds Like Sunrise: My Night with the Toronto Symphony Orchestra's Romeo & Juliet Adnan Obuz AI Strategy Consultant | Digital Transformation Expert Adnan Obuz AI Strategy Consultant | Digital Transformation Expert Adnan Obuz AI Strategy Consultant | Digital Transformation Expert Follow Nov 23 '25 When Music Sounds Like Sunrise: My Night with the Toronto Symphony Orchestra's Romeo & Juliet # classical # concerts # liveperformance 8 reactions Comments 1 comment 8 min read loading... trending guides/resources Why *Dhurandhar* Movie Songs Feel So Awesome 🎶 When Music Sounds Like Sunrise: My Night with the Toronto Symphony Orchestra's Romeo & Juliet 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Music Forem — From composing and gigging to gear, hot music takes, and everything in between. Home About Contact Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Music Forem © 2025 - 2026. We're a place dedicated to discussing all things music - composing, producing, performing, and all the fun and not-fun things in-between. Log in Create account | 2026-01-13T08:49:12 |
https://usehooks.com | useHooks – The React Hooks Library A collection of modern, server-safe React hooks – from the ui.dev team npm i @uidotdev/usehooks Copy useBattery useClickAway useContinuousRetry useCopyToClipboard useCountdown useCounter useDebounce useDefault useDocumentTitle useEventListener useFavicon useFetch useGeolocation useHistoryState useHover useIdle useIntersectionObserver useInterval useIntervalWhen useIsClient useIsFirstRender useKeyPress useList useLocalStorage useLockBodyScroll useBattery useClickAway useContinuousRetry useCopyToClipboard useCountdown useCounter useDebounce useDefault useDocumentTitle useEventListener useFavicon useFetch useGeolocation useHistoryState useHover useIdle useIntersectionObserver useInterval useIntervalWhen useIsClient useIsFirstRender useKeyPress useList useLocalStorage useLockBodyScroll useLogger useLongPress useMap useMeasure useMediaQuery useMouse useNetworkState useObjectState useOrientation usePageLeave usePreferredLanguage usePrevious useQueue useRandomInterval useRenderCount useRenderInfo useScript useSessionStorage useSet useThrottle useTimeout useToggle useVisibilityChange useWindowScroll useWindowSize useLogger useLongPress useMap useMeasure useMediaQuery useMouse useNetworkState useObjectState useOrientation usePageLeave usePreferredLanguage usePrevious useQueue useRandomInterval useRenderCount useRenderInfo useScript useSessionStorage useSet useThrottle useTimeout useToggle useVisibilityChange useWindowScroll useWindowSize Sort: Popular Name It’s dangerous to go alone! Master React by learning how to build useHooks yourself. useDebounce Delay the execution of function or state update with useDebounce. useLocalStorage Store, retrieve, and synchronize data from the browser’s localStorage API with useLocalStorage useWindowSize Track the dimensions of the browser window with useWindowSize. usePrevious Track the previous value of a variable with usePrevious. useIntersectionObserver Track and manage the visibility of your DOM elements within the viewport with useIntersectionObserver. useNetworkState Monitor and adapt to network conditions seamlessly with useNetworkState. useMediaQuery Subscribe and respond to media query changes with useMediaQuery. useOrientation Manage and respond to changes in device orientation with useOrientation. useSessionStorage Store, retrieve, and synchronize data from the browser’s session storage with useSessionStorage. usePreferredLanguage Adapt to user language preferences dynamically with usePreferredLanguage. useFetch Fetch data with accurate states, caching, and no stale responses using useFetch. useContinuousRetry Automates retries of a callback function until it succeeds with useContinuousRetry useVisibilityChange Track document visibility and respond to changes with useVisibilityChange. There’s no better way to learn useHooks than by building it yourself. useScript Load and manage external JavaScript scripts with useScript. useRenderInfo Debug renders and improve performance with useRenderInfo. useRenderCount Identify unnecessary re-renders and monitor update frequency with useRenderCount. useRandomInterval Execute a callback function at a random interval with useRandomInterval. useIntervalWhen Create dynamic timers that can be started, paused, or resumed with useIntervalWhen. useInterval Schedule periodic actions like data polling or animations with useInterval. useLockBodyScroll Temporarily disable scrolling on the document body with useLockBodyScroll. useCountdown Create countdown timers using useCountdown. useIsClient Determine whether the code is running on the client-side or server-side with useIsClient. useQueue Add, remove, and clear element from a queue data structure with useQueue. useHover Track whether an element is being hovered over with useHover. useTimeout Create delayed actions or timed events using useTimeout. Please give us your money. useEventListener Listen for events on a target element with useEventListener. useKeyPress Detect and perform actions on key press events with useKeyPress. useMap Synchronize and update state based on the Map data structure with useMap. useThrottle Throttle computationally expensive operations with useThrottle. useSet Synchronize and update state based on the Set data structure with useSet. useCopyToClipboard Copy text to the clipboard using useCopyToClipboard. useBattery Track the battery status of a user’s device with useBattery. useIdle Detect user inactivity with useIdle. useToggle A hook to toggle a boolean value with useToggle. useHistoryState Add undo / redo functionality with useHistoryState. useGeolocation Access and monitor a user's geolocation (after they give permission) with useGeolocation. usePageLeave Track when a user navigates away from a webpage with usePageLeave. The all new interactive way to master modern React (for fun and profit). useObjectState Manage complex state objects with useObjectState. useLogger Debug lifecycle events with useLogger. useDocumentTitle Dynamically update the title of a webpage with useDocumentTitle. useIsFirstRender Differentiate between the first and subsequent renders with useIsFirstRender. useLongPress Enable precise control of long-press interactions for both touch and mouse events with useLongPress. useFavicon Dynamically update the favicon with useFavicon. useDefault Manage state with default values using useDefault. useWindowScroll Track and manipulate the scroll position of a web page with useWindowScroll. useMeasure Effortlessly measure and track your component’s dimensions with useMeasure. useClickAway Detect clicks outside of specific component with useClickAway. useList Manage and manipulate lists with useList. useCounter Manage a counter value with minimum and maximum limits with useCounter. useMouse Track and retrieve the position of the mouse cursor with useMouse. by ui.dev View the Repo JavaScript Newsletter React Newsletter Learn React Learn React Query | 2026-01-13T08:49:12 |
https://dev.to/mwolfhoffman/supabase-vs-firebase-pricing-and-when-to-use-which-5hhp#sql-vs-nosql | Supabase Vs Firebase Pricing and When To Use Which - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Michael Wolf Hoffman Posted on Jan 22, 2022 Supabase Vs Firebase Pricing and When To Use Which # sql # webdev # firebase # database Supabase Vs Firebase Pricing and When To Use Which Supabase recently appeared on the scene as an attempt to be an open source alternative to Firebase. It's a great product and I've used it in many projects already. I've written about it here and here . The main difference between Supabase vs Firebase is that Supabase is a SQL database that utilized postgres and Firebase uses a NoSQL document data store. On my current side project I recently replaced Supabase for Firebase. I'll get into why and some of the pricing differences to consider. Consideration for Supabase vs Firebase Firebase has more features, for now For one, Firebase has been around much longer than Supabase and thus has more features. You can host your app on Firebase, you can also write cloud functions. (Currently I believe Supabase has cloud functions in beta). Both have great options for objects storage, authentication, and most things you will need as a backend as a service product. Also, while Supabase is not yet a perfect 1:1 mapping of Firebase, they do seem to be very quickly puting out new features to more closely match Firebase's offerings. SQL vs NoSQL This is a big one that I've been considering more. I enjoy relational data and my brain allows me to think about the relationships that SQL allows better than NoSQL document or key/value stores. I've been doing more of a deep dive into NoSQL and learning about how to structure data with it lately. With my research, I have decided that for small side projects and MVPs, I will be going with Firebase over Supabase if I truly don't need my data to be relational. NoSQL (firebase) can often be structured in a way that is more efficient than SQL. There are drawbacks however. Because you can't write complex queries and joins, you do have to consider how you might want to query your data in the future. This can be a difficult task. Once you have correctly anticipated the queries your application will need in the future, you actually duplicate that data into another document or collection in the NoSQL data store. Of course, now you have multiple places to update data too! This sounds like a headache, but with some practice it's actually pretty easy to catch on fast. After learning some more about how to structure documents in a NoSQL datastore, this performance and scalability is why I have decided that I will typically use Firebase over Supabase. The other reason is price. Pricing Another consideration for the Supabase vs Firebase debate is pricing. Both services offer a generous free tier. But what makes pricing considerations difficult is that scalability always has to be kept in mind. First, let's go over what each service offers for free in terms of a database and authentication (the two most used services by each) per month. Supabase: You get 3 free projects. You get 500 MB of storage. You get 10,000 users through their authentication service. Firebase: You get unlimited free projects. You get 1 GB of storage. You get 10,000 users through their authentication service. Firebase does charge for ingress and egress too. So you get 20,000 free writes per day and 50,000 free reads per day. Which to choose Ultimately, when I think about how my projects are going to scale (if they ever needed to) and what I am going to use them for, often NoSQL is just fine for my use cases and I get a better deal with Firebase. This is because my projects don't often scale to over 20,000 writes per day or 50,000 reads per day. And even if they do, the price is comparable with Supabase's next tier. This decision allows me to save my limited supabase free projects for when I really need a relational database. Top comments (6) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand Rashim Narayan Tiku Rashim Narayan Tiku Rashim Narayan Tiku Follow Joined Jan 21, 2023 • Apr 4 '24 Dropdown menu Copy link Hide You haven't added the biggest price factor for Supabase which is "Bandwidth" and "DB scalability". "Bandwidth": You won't run out of MAUs or DB storage, but you would easily cross the 5gb bandwidth mark, after which 25$ plan is your only option. "DB scalability": Free tier gives you micro DB which has very less concurrent connections allowed, scaling it again will cost you paid plan + extra compute costs. Supabase have very smartly advertised to bring in customers, but you realize after you get in that "there's no such thing as a free lunch". Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand shaoyanji shaoyanji shaoyanji Follow Joined Mar 19, 2024 • Apr 21 '24 Dropdown menu Copy link Hide pssssst....pocketbase Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Nicolò Curioni Nicolò Curioni Nicolò Curioni Follow I’m an Italian iOS developer. Education Tradate (VA), Italy Work Full time iOS developer Joined Apr 14, 2022 • Apr 14 '22 Dropdown menu Copy link Hide Hi, interesting post, but I have a question, I’m developing a diary app, for iOS/iPadOS and also macOS/watchOS, but I’m uncertain if use Firebase or Supabase. My app let the end user’s to edit the note content, with textView text styles, like different colors, fonts, formats and also add images inside the text, but, can I use Firebase or Supabase? Have you some advice’s? Thanks, Nicolò Curioni iOS Developer Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Matthew Harris Matthew Harris Matthew Harris Follow Aspiring Ionic app developer Location Digital Nomad Work Developer at Self Employed Joined Jul 9, 2019 • Sep 3 '22 Dropdown menu Copy link Hide Yes you can store both easily. There is a limitation with the nosql firebase that each record can be a maximum of 1mb (I think thats the limit). That is a ton of text to allow per note but its worth considering. You can also split a document over multiple records with a bit of creative coding, if you do need to go beyond those extreme limits. If you want to learn more about strategies for nosql I would recommend looking up Fireship on YouTube who has some good videos. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand neonitus neonitus neonitus Follow Joined Aug 20, 2023 • Aug 20 '23 Dropdown menu Copy link Hide Hi, Thanks for the post. I however have a question about authentication. If my app uses social authentication, firebase offers only 50k MAU while the pro plan for Supabase offers 100K MAUs. Would you then prefer to use Supabase Auth and Firestore DB? How would you approach this problem where you are going to have a lot of users using the app(+100,000 per month) and you want the power of RDBMS because you want to build an analytical platform for your app and app transactions? Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand codingjlu codingjlu codingjlu Follow Joined Jun 15, 2021 • May 29 '22 Dropdown menu Copy link Hide Thanks for the great article! I was searching this on Google because I wanted to see the pricing comparison, and you've covered that just well. Thanks again! Like comment: Like comment: 1 like Like Comment button Reply Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Michael Wolf Hoffman Follow Location Salt Lake City, Utah, USA Work Software Engineer Joined Apr 30, 2020 More from Michael Wolf Hoffman Where to Publish Plugins, Add-ons, and Extensions for Software Engineers and Entrepreneurs # webdev # startup # saas # career How to Use React + Supabase Pt 2: Working with the Database # react # webdev # javascript # programming How To Use React + Supabase Pt 1: Setting Up a Project and Supabase Authentication # react # webdev # javascript # programming 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://istio.io/latest/about/service-mesh/ | Istio / The Istio service mesh About Service mesh Solutions Case studies Ecosystem Deployment Training FAQ Blog News Get involved Documentation Try Istio About The Istio service mesh The Istio service mesh Istio addresses the challenges developers and operators face with a distributed or microservices architecture. Whether you're building from scratch, migrating existing applications to cloud native, or securing your existing estate, Istio can help. By using application proxies, Istio lets you program application-aware traffic management, incredible observability, and robust security capabilities into your network. What is Istio? A service mesh is an infrastructure layer that gives applications capabilities like zero-trust security, observability, and advanced traffic management, without code changes. Istio is the most popular, powerful, and trusted service mesh. Founded by Google, IBM and Lyft in 2016, Istio is a graduated project in the Cloud Native Computing Foundation alongside projects like Kubernetes and Prometheus. Istio ensures that cloud native and distributed systems are resilient, helping modern enterprises maintain their workloads across diverse platforms while staying connected and protected. It enables security and governance controls including mTLS encryption, policy management and access control, powers network features like canary deployments, A/B testing, load balancing, failure recovery, and adds observability of traffic across your estate. Istio is not confined to the boundaries of a single cluster, network or runtime — services running on Kubernetes or VMs, multi-cloud, hybrid, or on-premises, can be included within a single mesh. Extensible by design and supported by a broad ecosystem of contributors and partners, Istio offers packaged integrations and distributions for various use cases. You can install Istio independently or opt for managed support from commercial vendors providing Istio-based solutions. Learn more about Istio Features Secure by default Istio provides a market-leading zero-trust solution based on workload identity, mutual TLS, and strong policy controls. Istio delivers the value of BeyondProd in open source, while avoiding vendor lock-in or SPOFs. Learn about security Increase observability Istio generates telemetry within the service mesh, enabling observability on service behavior. It integrates with APM systems including Grafana and Prometheus to deliver insightful metrics for operators to troubleshoot, maintain, and optimize applications. Learn about observability Manage traffic Istio simplifies traffic routing and service-level configuration, allowing easy control over flow between services and setup of tasks like A/B testing, canary deployments, and staged rollouts with percentage-based traffic splits. Learn about traffic management Why Istio? Multiple deployment modes Istio offers two data plane modes for users to choose. Deploy with the new ambient mode for a simplified app operational lifecycle or with traditional sidecars for complex configurations. Learn about data plane modes Powered by Envoy Built on the industry standard gateway proxy for cloud native applications, Istio is highly performative and extensible by design. Add custom traffic functionality with WebAssembly, or integrate third-party policy systems. Learn about Istio and Envoy A true community project Istio has been designed for modern workloads and engineered by a vast community of innovators across the cloud native landscape. Learn about Istio’s contributors Stable binary releases Confidently deploy Istio across production workloads. All releases are fully accessible at no cost. Learn about how Istio is packaged Was this information useful? Yes No Do you have any suggestions for improvement? Thanks for your feedback! Links English Español 中文 Українська Terms and Conditions | Privacy policy | Trademarks | Edit this Page on GitHub © 2025 the Istio Authors. Version Istio 1.28.2 next release older releases | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Web Development Follow Hide Because the internet... Create Post submission guidelines Be nice. Be respectful. Assume best intentions. Be kind, rewind. Older #webdev posts 2 3 4 5 6 7 8 9 10 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu My Dashboard: как я превратил старые Android-устройства в кроссплатформенные дашборды с помощью AI и типобезопасного fullstack ILshat Khamitov ILshat Khamitov ILshat Khamitov Follow Jan 11 My Dashboard: как я превратил старые Android-устройства в кроссплатформенные дашборды с помощью AI и типобезопасного fullstack # webdev # javascript # programming # ai Comments Add Comment 1 min read Kubernetes Namespace Isolation: Why It's Not a Security Feature (And What Actually Is) inboryn inboryn inboryn Follow Jan 12 Kubernetes Namespace Isolation: Why It's Not a Security Feature (And What Actually Is) # kubernetes # devops # webdev Comments Add Comment 2 min read Integrating HubSpot with Salesforce using Webhooks for Real-Time Data Synchronization CallStack Tech CallStack Tech CallStack Tech Follow Jan 12 Integrating HubSpot with Salesforce using Webhooks for Real-Time Data Synchronization # api # webdev # tutorial # programming 1 reaction Comments Add Comment 13 min read Self-Documenting Code vs. Comments: Lessons from Maintaining Large-Scale Codebases ThankGod Chibugwum Obobo ThankGod Chibugwum Obobo ThankGod Chibugwum Obobo Follow Jan 11 Self-Documenting Code vs. Comments: Lessons from Maintaining Large-Scale Codebases # 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e2llm # cicd # webdev # automation 1 reaction Comments Add Comment 4 min read Who is Krishna Mohan Kumar? | Full Stack Developer & B.Tech CSE Student Krishna Mohan Kumar Krishna Mohan Kumar Krishna Mohan Kumar Follow Jan 12 Who is Krishna Mohan Kumar? | Full Stack Developer & B.Tech CSE Student # webdev # beginners # portfolio # google Comments Add Comment 1 min read Building a React Dashboard in 2026: What Actually Matters (From a Dev Perspective) Vaibhav Gupta Vaibhav Gupta Vaibhav Gupta Follow Jan 12 Building a React Dashboard in 2026: What Actually Matters (From a Dev Perspective) # webdev # react # opensource # frontend Comments Add Comment 2 min read Build Network Proxies and Reverse Proxies in Go: A Hands-On Guide Jones Charles Jones Charles Jones Charles Follow Jan 12 Build Network Proxies and Reverse Proxies in Go: A Hands-On Guide # go # networking # programming # webdev Comments Add Comment 6 min read Building a Fast JSON Formatter: Lessons Learned Vanshit Mehta Vanshit Mehta Vanshit Mehta Follow Jan 12 Building a Fast JSON Formatter: Lessons Learned # webdev # javascript # java # tools Comments Add Comment 2 min read I built a free JSON formatter tool (with $9 API option) Mustapha Kamel Alami Mustapha Kamel Alami Mustapha Kamel Alami Follow Jan 12 I built a free JSON formatter tool (with $9 API option) # showdev # nextjs # tooling # webdev Comments 1 comment 1 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/help/customizing-your-feed#Your-Reading-List | Customizing Your Feed - DEV Help - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close DEV Help The latest help documentation, tips and tricks from the DEV Community. Help > Customizing Your Feed Customizing Your Feed In this article The "Feed" Tags Follow Tags Hide Tags Users Follow Users Block Users Your Reading List Common Questions What about my post's Google ranking? Tailor your reading experience on DEV to suit your preferences. The "Feed" The home page is tailored to each individual DEV member based on what they're following. Every now and then, the DEV Team may "pin" a post to the homepage if it's an announcement that is relevant to all folks, but these are generally posts from the DEV Team. Your feed is where you'll discover a diverse range of articles published by developers worldwide. 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https://dev.to/hereisnaman/logical-or-vs-nullish-coalescing-operator-in-javascript-3851#comment-1b492 | JavaScript ||: Logical OR (||) vs Nullish Coalescing Operator (??) in JavaScript - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Naman Kumar Posted on Apr 22, 2020 JavaScript || Logical OR (||) vs Nullish Coalescing Operator (??) in JavaScript # node # javascript # opensourc With the latest release of version 14, the Nullish Coalescing Operator (??) is now supported in NodeJS. In this post let us see what is the use case of this operator and how is it different from the logical OR. Logical Or (||) const paginate = ( options = {}) => { return [ 1 , 2 , 3 , 4 , 5 ]. splice ( 0 , options . limit || 3 ); } paginate ( 1 ); // expected: [1], output: [1] paginate (); // expected: [1, 2, 3], output: [1, 2, 3] paginate ( 0 ); // expected: [], output: [1, 2, 3] Enter fullscreen mode Exit fullscreen mode How the logical or operator functions is, it returns the right hand value if the left hand value coerce to false. And that not only includes undefined and null but also 0 and '' . In many of our use cases, like the one above this causes unexpected results and we end up using the typeof operator. Nullish Coalescing Operator (??) This solves the problem for us. This operators returns the right hand value only if the left hand value is either null or undefined . const paginate = ( options = {}) => { return [ 1 , 2 , 3 , 4 , 5 ]. splice ( 0 , options . limit ?? 3 ); } paginate ( 1 ); // expected: [1], output: [1] paginate (); // expected: [1, 2, 3], output: [1, 2, 3] paginate ( 0 ); // expected: [], output: [] Enter fullscreen mode Exit fullscreen mode Share your quick JavaScript bites in comments. Top comments (4) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand hrdyjan1 hrdyjan1 hrdyjan1 Follow Vegetarian with long feet, who is in love with Marie and React. TL; DR Marie = Girlfriend React = JavaScript Library Location The Czech Republic Education Czech Technical University Work Bachelor at Prague, Front End developer Joined Sep 4, 2019 • Jan 13 '21 Dropdown menu Copy link Hide There should be probably "limit" only, no "options/options.limit". Like comment: Like comment: 9 likes Like Comment button Reply Collapse Expand Patrick Alcisto Patrick Alcisto Patrick Alcisto Follow Author of CSS, hacker of JS, rider of Mountain Bikes (downhill type preferably), "father" of two dogs Location Charlotte, NC Work Software Engineer Joined May 2, 2019 • Feb 2 '21 Dropdown menu Copy link Hide Nice article but, @ hrdyjan1 is right, your example implies it expects an object with a possible limit property, yet you never pass the limit as part of an object in the three invocations. Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand TonyDev 👾 TonyDev 👾 TonyDev 👾 Follow Location Spain Work One of MAANG Joined Nov 17, 2019 • Jun 30 '24 • Edited on Jun 30 • Edited Dropdown menu Copy link Hide options.limit is always undefined All cases return [1, 2, 3] Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Aniruddha Das Aniruddha Das Aniruddha Das Follow Joined Apr 8, 2023 • Apr 21 '23 Dropdown menu Copy link Hide Thanks, clears the basic concept. Like comment: Like comment: 1 like Like Comment button Reply Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Naman Kumar Follow Engineering @ProductHunt Location New Delhi, India Work Software Engineer at Product Hunt Joined Sep 7, 2019 More from Naman Kumar A minimal authorization policy builder for NodeJs # npm # node # javascript # authorization 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/kafeel-ahmad/how-to-replace-over-complicated-ngrx-stores-with-angular-signals-without-losing-control-18f7 | How To Replace Over-Complicated NgRx Stores With Angular Signals — Without Losing Control - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse kafeel ahmad Posted on Jan 7 How To Replace Over-Complicated NgRx Stores With Angular Signals — Without Losing Control # javascript # angular # webdev # beginners Hey, picture this: you're knee-deep in an Angular app, drowning in NgRx actions, reducers, effects, and selectors just to flip a simple boolean, load some todos, or filter a list. It's battle-tested for massive enterprise beasts where every change needs auditing across huge teams, but for most real-world projects? It's total overkill — endless boilerplate files that steal your dev joy and slow you down. Then Angular Signals burst onto the scene like a breath of fresh air. Native, lightweight reactivity that slashes 70% of that NgRx ceremony while making your app scream faster — no more Zone.js crutches or unpredictable re-renders. Signals track dependencies surgically, updating only what needs to change, and they're downright fun to use. What if you could ditch NgRx entirely and build clean, scalable state right in injectable services? That's our mission here: a practical guide to migrating with update() for bulletproof immutable changes (spread those arrays and objects!), smart patterns for global state sharing, computed values that derive on-the-fly, and side effects that sync with localStorage or APIs without the drama. Skip the heavy NgRx SignalStore—we're going pure Signals for maximum simplicity and speed. Whether you're a dev sick of verbosity, a tech lead craving happier teams that ship faster, or a stakeholder eyeing cheaper, zippier apps — this no-nonsense path delivers. Ready to reclaim your weekends? Let's dive in and make state management feel effortless again. NgRx Pain Points and Signals Advantages Let's get real: NgRx is like hiring a full construction crew to hang a single picture frame — it's powerhouse stuff for massive enterprise cathedrals, but for everyday apps like dashboards, e-commerce carts, or internal tools, it buries you under mountains of boilerplate that kill momentum. Signals flip that script entirely, delivering lightweight reactive magic that slashes ceremony, accelerates development, and turns maintenance into something humans actually enjoy — even for teams dodging RxJS rabbit holes. Why NgRx Feels Like Overkill in Real-World Projects Imagine kicking off a simple feature: a user counter for your analytics dashboard. NgRx demands the full Redux ritual — create counter.actions.ts with increment() and decrement() creators, craft counter.reducer.ts to immutably switch on those actions, define counter.state.ts interfaces, build counter.selectors.ts for peeking at state, then wire a feature module with StoreModule.forFeature() . That's 5-10 files minimum, hundreds of lines just to count clicks. New hires stare at the folder explosion, onboarding drags into weeks, and tweaking logic means hunting across a dozen spots ripe for copy-paste bugs. Reddit threads overflow with war stories: "Lost a full week mastering boilerplate for a basic todo list". Non-enterprise reality? Startups and mid-sized teams crave velocity — this overhead murders it. Unit testing drowns in Store mocks and marble diagrams. Debugging? Good luck tracing dispatched actions through the Redux time machine. Small apps rarely need a god-store; local services suffice until regret hits at scale. No surprise savvy teams skip NgRx until truly forced, often never. Signals Fundamentals: Reactive Primitives Anyone Can Grasp Signals bring Angular's reactivity into the 21st century — simple primitives that pack a punch without RxJS esoterica. Kick off with signal(initialValue) : wrap any data (primitives, objects, arrays) and Angular auto-tracks reads/writes for precise notifications. Update via set(newValue) for direct swaps, update(fn => transformedValue) for safe derivations—Angular figures out exactly what to refresh, no manual plumbing. Next, computed(() => yourLogic()) crafts read-only derived state that smartly recalculates only when dependencies budge, caching aggressively to nix waste. Side effects? effect(() => { sideEffect(signalValue()) }) fires precisely on changes—log analytics, sync APIs, trigger animations—subscription-free, leak-proof, running in batched microtasks for silky smoothness. Glitches? Banished. The graph ensures consistent ordering. Managers love this: codebases shrink 50%+, bugs plummet, juniors ship Day 1 sans Redux seminary. Scalability Showdown: Signals Leave NgRx in the Dust NgRx leans on zone.js change detection — monkey-patching every async event to scan your entire app tree. Small apps? Tolerable. Scale to 100+ components? Sluggish repaint marathons. Signals unlock fine-grained reactivity: only dirty components re-render, turbocharging zoneless Angular (v16 experiments now v18 production). Benchmarks scream victory — 2–5x faster list renders, form updates, dashboard charts, especially on mobile. Signals prioritize immutability via update() , birthing predictable fresh values—like signalArray.update(arr => [...arr, newItem]) for clean array growth. NgRx clings to RxJS streams and zone pollution; Signals scale fluidly from component locals to app-wide services, no Big Bang store refactor needed. Growing teams pivot seamlessly as complexity creeps in. Hands-On Demo: Counter Face-Off That Converts Skeptics Time to build: simple increment/decrement/reset counter. NgRx gauntlet? Architect a village: counter.actions.ts : Action creators increment() , decrement() counter.reducer.ts : Immutable switch returning new state slices counter.state.ts : { count: number } interface counter.selectors.ts : selectCount(state) counter.module.ts : StoreModule.forFeature('counter', reducer) Component boilerplate: store.dispatch() , store.select() , OnDestroy cleanup 300+ lines of ceremony, typo-prone indirection. Signals? One standalone component, pure bliss: import { Component , signal, computed } from '@angular/core' ; @Component ({ selector : 'app-counter' , template : ` <h2>Count: {{ count() }} (Double: {{ double() }})</h2> <button (click)="increment()">+1</button> <button (click)="decrement()">-1</button> <button (click)="reset()">Reset</button> ` , }) export class CounterComponent { count = signal< number >( 0 ); double = computed ( () => this . count () * 2 ); increment (): void { this . count . update ( ( v: number ) => v + 1 ); } decrement (): void { this . count . update ( ( v: number ) => v - 1 ); } reset (): void { this . count . set ( 0 ); } } Spot the revolution? Typed TypeScript bliss — IntelliSense dances, refactors fearless, compile-time guards halt bugs. Test? Invoke methods directly, mock nothing. Share via injectable service? provideIn: 'root' . Scales to carts, forms, auth without breaking sweat. Stakeholders beam at velocity; engineers celebrate simplicity. Ditch the sledgehammer—Signals are your scalpel. Building a Signals-Based State Service Imagine converting a basic Angular service into a reactive "signals store" — your app's smart command center. Group related signals, expose public readonly views, control private mutations. Ditch change detection headaches for precise, automatic updates. Perfect for todos, carts, dashboards. Let's build one, then a production todo app under 100 lines. Why Signals Stores Win Skip heavy libraries. Injectable services become lightweight stores : zero deps, pure Angular, fine-grained reactivity. Managers : Less code, fewer bugs, faster apps. Devs : Toggle one item? Only that row repaints. Scales to enterprise. Store Foundation (30 lines) import { Injectable , signal, computed, effect } from '@angular/core' ; export interface Todo { id : number ; text : string ; completed : boolean ; } @Injectable ({ providedIn : 'root' }) export class TodoStore { // Private state private _todos = signal< Todo []>([]); private _filter = signal< 'all' | 'active' | 'completed' >( 'all' ); private _loading = signal ( false ); // Public reads public readonly todos = this . _todos . asReadonly (); public readonly filter = this . _filter . asReadonly (); public readonly loading = this . _loading . asReadonly (); // Derived state public readonly filteredTodos = computed ( () => { const f = this . _filter (); const todos = this . _todos (); return f === 'active' ? todos. filter ( t => !t. completed ) : f === 'completed' ? todos. filter ( t => t. completed ) : todos; }); public readonly totalTodos = computed ( () => this . todos (). length ); public readonly activeCount = computed ( () => this . todos (). filter ( t => !t. completed ). length ); public readonly completedCount = computed ( () => this . totalTodos () - this . activeCount ()); } Magic : Computeds only rerun when dependencies change. Effects: Auto-Sync (5 lines) constructor ( ) { effect ( () => { const todos = this . _todos (); if (todos. length ) localStorage . setItem ( 'todos' , JSON . stringify (todos)); }); } Swaps easily for API calls. CRUD: Immutable Only (40 lines) addTodo ( text : string ): void { const trimmed = text?. trim (); if (!trimmed) return ; this . _todos . update ( todos => [...todos, { id : Date . now (), text : trimmed, completed : false }]); } toggleTodo ( id : number ): void { this . _todos . update ( todos => todos. map ( t => t. id === id ? {...t, completed : !t. completed } : t )); } editTodo ( id : number , text : string ): void { const trimmed = text?. trim (); if (!trimmed) return ; this . _todos . update ( todos => todos. map ( t => t. id === id ? {...t, text : trimmed} : t )); } removeTodo ( id : number ): void { this . _todos . update ( todos => todos. filter ( t => t. id !== id)); } setFilter ( filter : 'all' | 'active' | 'completed' ): void { this . _filter . set (filter); } clearCompleted (): void { this . _todos . set ( this . todos (). filter ( t => !t. completed )); } async loadTodos (): Promise < void > { this . _loading . set ( true ); try { await new Promise ( r => setTimeout (r, 800 )); const saved = localStorage . getItem ( 'todos' ); if (saved) this . _todos . set ( JSON . parse (saved)); } finally { this . _loading . set ( false ); } } Key : Always return new arrays/objects. Reactivity guaranteed. Complete Todo App Reactive forms + modern templates. Logic: 25 lines. import { Component , signal, inject } from '@angular/core' ; import { FormControl , ReactiveFormsModule , Validators } from '@angular/forms' ; import { CommonModule } from '@angular/common' ; import { TodoStore , Todo } from './todo.store' ; @Component ({ selector : 'app-todo' , standalone : true , imports : [ CommonModule , ReactiveFormsModule ], template : ` <main class="app"> <header> <h1>Signal Todos</h1> <div>Total: {{store.totalTodos()}} | Active: {{store.activeCount()}}</div> @let loading = store.loading(); @if (loading) { <div>⏳ Loading...</div> } </header> <form (ngSubmit)="addTodo()" class="add-form"> <input [formControl]="newTodoCtrl" placeholder="New todo..." /> <button type="submit" [disabled]="newTodoCtrl.invalid">Add</button> </form> <nav class="filters"> @for (let f of filterOptions; track f) { <button [class.active]="store.filter() === f" (click)="store.setFilter(f)"> {{f[0].toUpperCase() + f.slice(1)}} </button> } </nav> @let todos = store.filteredTodos(); @if (todos.length) { <ul> @for (let todo of todos; track todo.id) { <li [class.done]="todo.completed"> <input type="checkbox" [checked]="todo.completed" (change)="store.toggleTodo(todo.id)" /> @if (!editingId() || editingId() !== todo.id) { <span (dblclick)="editTodo(todo)">{{todo.text}}</span> } @else { <input [formControl]="editCtrl" (keyup.enter)="saveEdit()" (blur)="saveEdit()" autofocus /> } <button (click)="store.removeTodo(todo.id)">Delete</button> </li> } </ul> @let done = store.completedCount(); @if (done) { <button (click)="store.clearCompleted()">Clear {{done}} done</button> } } @else { <p>No {{store.filter()}} todos</p> } </main> ` , styles : [ ` .app { max-width: 600px; margin: 2rem auto; padding: 1rem; } .add-form { display: flex; gap: 1rem; margin: 2rem 0; } .filters { display: flex; gap: 0.5rem; justify-content: center; margin: 2rem 0; } .filters button.active { background: #3b82f6; color: white; } li { display: flex; gap: 1rem; align-items: center; padding: 1rem; border: 1px solid #eee; } li.done { opacity: 0.6; text-decoration: line-through; } ` ] }) export class TodoComponent { protected store = inject ( TodoStore ); protected newTodoCtrl = new FormControl ( '' , Validators . required ); protected editCtrl = new FormControl ( '' ); protected editingId = signal< number | null >( null ); protected filterOptions = [ 'all' , 'active' , 'completed' ] as const ; constructor ( ) { this . store . loadTodos (); } addTodo (): void { const text = this . newTodoCtrl . value ?. trim (); if (text) { this . store . addTodo (text); this . newTodoCtrl . reset (); } } editTodo ( todo : Todo ): void { this . editingId . set (todo. id ); this . editCtrl . setValue (todo. text ); } saveEdit (): void { const id = this . editingId (); const text = this . editCtrl . value ?. trim (); if (id && text) this . store . editTodo (id, text); this . editingId . set ( null ); this . editCtrl . reset (); } } The Power Unleashed 85-line service + 25-line component = production todo app with: ✅ Full CRUD operations ✅ Smart filtering ✅ LocalStorage sync ✅ Loading states ✅ Inline editing ✅ Bulk actions ✅ Form validation ✅ Modern Angular 18+ ( @for/@if , signals) Scale it : Shopping carts? User profiles? Analytics? Same pattern. Immutable updates + computed derivations = unbeatable performance. Signals stores = simple, reactive, scalable. Your new Angular default. Migration Strategy from NgRx to Signals Hey folks, let's dive into migrating from NgRx to Angular Signals. Everyone's buzzing about Signals because they make state management way simpler and faster — no more drowning in actions, reducers, and endless selector chains. The beauty is you don't have to burn your NgRx setup to the ground. Start small with UI state like toggles and forms, keep NgRx for the heavy global stuff like user auth, and gradually shift over. It's less scary than it sounds, and your app gets noticeably snappier along the way. Step-by-Step Refactor Process First up, grab a coffee and map out your state. Ask yourself: is this dialog open state local to one component, or does it need to sync across the whole app? Local stuff screams for Signals. Global (think shared product catalogs) — leave it with NgRx for now. Next, tackle those selectors. Instead of store.select(selectCart) | async everywhere, use NgRx's own selectSignal() wrapped in a computed() . Ditch the async pipes – your templates breathe again. Then swap actions for service methods. Imagine dispatch(addToCart(item)) becomes cartService.add(item) with a clean this.cart.update(items => [...items, item]) . Here's how I'd tackle it over a few sprints: Audit your state : Local = Signals. Global = NgRx. Use Nx dependency graphs or just grep your codebase. Selectors first : readonly cartItems = this.store.selectSignal(selectCartItems); – done, use cartItems() everywhere. Actions to methods : Create injectable services as the single source of truth. Test one feature at a time. Verify with Profiler : Angular DevTools shows render wins immediately. Feature flag everything. Rinse and repeat : One lazy-loaded module per week. Ship, celebrate, move on. I love how each step peels back NgRx ceremony you didn't really need. Suddenly your components are half the size. The Smart Hybrid Approach Look, NgRx is battle-tested for crazy complex flows — optimistic updates, cross-tab sync, effects with retries. Don't fight it. Let NgRx own global state, Signals handle everything else. Your renders speed up 2–3x because Signals trigger exactly what's needed, no Zone.js wakeups. Here's the real-world breakdown: NgRx vs Signals Teams mixing both report the best results — NgRx for orchestration, Signals for reactivity. Shopping apps keep order history global, cart UI local. Perfect balance. Keeping Control with Unidirectional Flow Chaos happens when every component pokes at shared state. Solution? Route everything through services. CartService becomes your gatekeeper: add(item) , remove(id) , clear() . Want to debounce rapid adds from some legacy Effect? toObservable(this.cart).pipe(debounceTime(300), takeUntilDestroyed()).subscribe(...) . Boom – RxJS and Signals play nice. Steal this service pattern: @Injectable ({ providedIn : 'root' }) export class CartService { readonly cart = signal< Item []>([]); add ( item : Item ): void { this . cart . update ( items => [...items, item]); } // Bridge old effects constructor ( ) { toObservable ( this . cart ) . pipe ( debounceTime ( 250 ), takeUntilDestroyed ()) . subscribe ( items => this . saveToLocalStorage (items)); } } Add a lint rule: "no direct signal updates outside services." Team stays sane, data flows one way. Real-World Test: Shopping Cart Migration Nothing proves this like a shopping cart refactor — everyone has one, and the wins are dramatic. Rip out the NgRx feature module. Build CartService with cartItems = signal([]) . Template goes from this mess: < p > Total: {{ cart$ | async | currency }} </ p > @for (item of cart$ | async; track item.id) { ... } To pure bliss: < p > Total: {{ cartItems().reduce((sum, i) => sum + i.price, 0) | currency }} </ p > @for (item of cartItems(); track item.id) { ... } < button ( click )= "cartService.add(item)" > Add </ button > Fire up Angular Profiler: Renders: 2x faster. Signals skip unchanged DOM. Bundle: -15KB. No more NgRx feature bloat. Memory: Fewer subscriptions = happier GC. Feature flag it: @if (useSignalsCart()) { <signal-cart /> } . A/B test Time to Interactive with real traffic. Users notice the cart feels instant. Green light? Hit wishlist next, then user settings. By checkout, half your app runs on Signals, zero outages. This isn't some pipe dream — teams shipping this weekly. Start with that cart tomorrow. You'll wonder why you waited. Conclusion So there you have it — Angular Signals are your new best friend when it comes to ditching that overwhelming pile of NgRx boilerplate so many apps wrestle with. Picture this: a single, elegant update() call lets you handle immutable state changes—like incrementing a counter or patching user data—without breaking a sweat. Everything flows predictably through lightweight, injectable services, no more chasing side effects or debugging reducer chains. Best part? You're perfectly positioned for Angular's full-on shift to reactivity, where signals power fine-grained updates and blazing performance. Honestly, for about 80% of projects, this switch means way less code, fewer late-night bugs, and templates that just… work, skipping the whole action-reducer-effect tango. Ready to jump in hands-on? Grab the AngularSpace article packed with migration examples, snag your app's simplest store (basic counter or todo list), and refactor it with update() magic. Test the waters, clock those performance gains (often 50% less code, zero downsides), and drop your before/after stories right here in the comments. Deep dive time: Swing by Angular's official Signals docs to master computed() and effect() . Check NgRx's v21 migration guide for smooth signalStore transitions. Explore Nx workspace recipes for enterprise-scale patterns . Trust me, once you try it, you'll wonder why you waited so long! Thanks for Reading 🙌 I hope these tips help you ship better, faster, and more maintainable frontend projects. Author: Karol Modelski Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . 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https://hpcdocs.hpc.arizona.edu/ | UArizona HPC Documentation Skip to content UArizona HPC Documentation Home Initializing search GitHub UArizona HPC Documentation GitHub Home Home Table of contents Introduction Featured Links System Highlights 2025 Highlighted Research Available Resources News Acknowledgements HPC Quick Start HPC Quick Start Overview What is HPC? Common Misconceptions Logging In Storage and Transfers Accessing Compute Nodes Software Summary Policies Policies Acceptable Use Access Standard Practices Acknowledgements Buy-in Committees Loss of University Affiliation Maintenance Special Projects HPC For Instruction Resources Resources Allocations Compute Resources Research Data Center Secure Services Operating System Updates Access Access Account Creation Account Deletion Group Management System Access System Layout VPN Storage and Transfers Storage and Transfers Storage Storage Overview HPC Storage Rental Storage R-DAS Storage Tier2 AWS Storage Transfers Transfers Overview Open OnDemand Cyberduck FTP/LFTP/SFTP Globus iRODS Rsync Rclone SCP Software Software Overview Modules User Installations Common Datasets Popular Software Popular Software Anaconda Gaussian AlphaFold Mamba Matlab Perl Python R VSCode Remote Connection Containers Containers What are Containers Containers on HPC Pulling Containers Building Containers Using Containers Running Jobs Running Jobs Overview Job Limits CPUs and Memory Open OnDemand/Graphical Jobs Interactive Jobs Batch Jobs Batch Jobs Intro to Batch Batch Directives Environment Variables Array Jobs Jobs with GNU Parallel Job Dependencies Submitting Jobs Monitoring Jobs and Resources Resource Optimization Parallelization Visualization Visualization Intro Blender Blender Blender Command Line Rendering Scaling Up Blender Rendering ParaView ParaView Essential Ideas Getting Started with Paraview GUI CGAl Vespa Paraview Python Plugins Getting Started with Paraview Terminal Graphs and Exporting Data Cameras and Keyframes Headless Batch Rendering Speeding up Filters & Rendering with Client Server configurations Visualizing NetCDF Files ArcGIS Pro Heightmaps VisIt Support Support Consulting Services Office Hours Support Staff FAQs Glossary Linux Cheat Sheet Grants NSF Access CI Community and External Resources Website Accessibility Events and Workshops Events and Workshops Calendar HPC Workshop Materials Blog Blog Blog Archive Archive 2025 2024 Categories Categories AI Conferences Research Storage Results Welcome to the UArizona HPC Documentation Site ¶ Introduction ¶ The University of Arizona offers High Performance Computing (HPC) resources in the Research Data Center (RDC), a state-of-the-art facility that hosts our large computer clusters. HPC services are available at no cost to researchers. Each faculty member is eligible for a free standard allocation of CPU time and storage space . This documentation site provides technical details relevant to using our HPC system. Whether you are just starting your journey into computational sciences or are a seasoned programmer, we hope you will find something useful in these pages. This site is managed by the HPC Consult team. Please contact us if you have questions or comments about the content of this site. Featured Links ¶ Account Creation If you are an active UArizona affiliate (e.g. student, post-doc, faculty), you can register an account. If you are not affiliated with UArizona but are working with collaborators here, you can register as a Designated Campus Colleague (DCC). HPC Quick Start If you are new to the UArizona HPC, or to HPC in general, our self-guided quick start tutorial will provide a solid foundation for using our system. Getting Help | FAQs Find out how to contact the HPC Consult team, or view our FAQs, glossary, cheat sheets, and more! Events Calendar | Workshop Materials Every semester we host training sessions on topics including intro to HPC, machine learning, parallel computing, and beyond. Click the link above to see our workshop schedule, our old training materials, and find more workshops from around campus. System Highlights 2025 ¶ Download Full Report Over the past four years, Puma has been a vital resource for researchers at the University of Arizona. In fiscal year 2025, our systems supported over 300 million compute hours enabling diverse research spanning climate modeling, genomics, neuroimaging, and more. With more than 80 active departments, 500 principal investigators, and 1,500 users, Puma continues to advance discovery and innovation. Researchers rely on our HPC resources not only for computational power, but also for expert support. This past year, we assisted users with nearly 2000 support requests. Explore highlights from this year, including testimonials from researchers and key statistics by downloading the full annual report. Highlighted Research ¶ Ten Millionth Job Planetary History Cloud Research Hypersonic Flow Puma has been a tremendous resource for our research community. Just recently it processed the 10 millionth job since we provisioned it in 2020. Just to get a perspective on that, if you took one step for each job you could walk to Niagara Falls. And back. David Castellano, a member of Dr. Ryan Gutenkunst's team, was the researcher who achieved this milestone. They study the evolutionary processes that generated the complex networks that comprise life. Dr. Gutenkunst told us that David’s been maximizing his chances to hit this milestone with all the jobs he’s been running. David says about his work: “Understanding the relationship between DNA mutation rates and fitness effects is central to evolutionary biology. My work is investigating this relationship in three species: Homo sapiens, Mus musculus, and Arabidopsis thaliana. The inference of fitness effects from population genomics data requires intensive computation which could not be possible without a High Performance Computing service.” The software used in their research is called ‘dadi’: Diffusion Approximations for Demographic Inference. This work on three species with 96 mutation types and 1000 bootstrap replicates equates to 288,000 compute jobs. Reconstructing the History of the Solar System Using HPC Erik Asphaug’s Planetary Formation Lab in the Lunar and Planetary Laboratory uses smoothed-particle hydrodynamics (SPH) simulations to explore how collisions between bodies in the Solar System shape its evolution through time. These three-dimensional simulations, which approximate planetary bodies as collections of particles, incorporate realistic geologic properties to track their structural and thermal changes during and after giant impacts. From Eric: “The access to increased time allocations as well as large volumes of temporary storage on xdisk provided by the HPC has revolutionized our ability to run our most complex simulations at high resolution, with enough space and time to explore the full parameter space necessary to make key discoveries that inform our understanding of Solar System evolution.” One of their major projects has occupied a large fraction of their HPC hours and storage: the capture of Pluto’s moon, Charon, from a giant impact early in the Solar System’s history. High resolution is also critical to track detailed interactions between Pluto and Charon, including any material transferred between them. Without the HPC and the allocation of computation time and storage space, they would not have been able to run the hundreds of models necessary to successfully reproduce systems that look similar to Pluto and Charon today. The models have revealed new insights about how bodies like Pluto capture satellites: the dwarf planet and its proto-satellite collide, briefly merge, and then re-separate as Charon slow begins to move outward. They call this new process, which significantly redefines our understanding of giant collisions, “kiss and capture.” An example kiss-and-capture is shown in the image above. The simulation shown covers 60 hours of model time, which takes ~1.5 months on the HPC. The ability to run such long simulations in parallel was crucial to completing this work. Read more about the full story here! Sylvia Sullivan is an Assistant Professor in Chemical and Environmental Engineering who performs atmospherically related research and has a joint appointment to the Department of Hydrology and Atmospheric Sciences. Her academic background is in chemical engineering, but she has picked up atmospheric science and computing skills along the way to model and understand cloud and storm systems. “I really liked environmental work because I felt it was very impactful,” she says. Her research includes investigating cloud ice formation. From a chemical engineering perspective, you can think about clouds as a control volume, flows in and out and phase changes occurring inside. Along with this more technical view, Sylvia says she “fell in love with clouds because they are very beautiful and poetic”. This blend of fields brought her to the University of Arizona as it is one of the only Universities where Chemical and Environmental Engineering are in the same department. And besides, “Tucson is a wonderful location”. She is building a research group to study the impact of ice clouds, particularly their energetic and precipitation effects. Sylvia’s group runs very high-resolution simulations called storm resolving simulations, where the meshes are fine enough to represent individual storms. In global climate models, the mesh has a resolution on the order of 100 km, in which several storm cells can form simultaneously. These storm-resolving computations are very expensive and produce terabytes of data, which then need to be post-processed and visualized. Currently, Sylvia and her group are very focused on working with other visualization experts on campus to illustrate the structures and evolution of clouds and storm systems. Faster Speeds Need Faster Computation Professors Christoph Hader, Hermann Fasel, and their team are exploring the use of our GPUs to optimize Navier-Stokes codes for simulating the flow field around hypersonic vehicles traveling at size times the speed of sound (Mach 6) or more. In the image to the right, instantaneous flow structures obtained from a DNS for a flared cone at Mach 6 are visualized using the Q-isocontours colored with instantaneous temperature disturbance values. The small scales towards the end of the computational domain indicate the regions where the boundary layer is turbulent. Available Resources ¶ Our Clusters (click to expand) Puma Ocelote El Gato Implemented in the middle of 2020, Puma is the biggest cat yet. Similar to Ocelote, it has standard CPU nodes (with 94 cores and 512 GB of memory per node), GPU nodes (with Nvidia V100) and two high-memory nodes (3 TB). Local scratch storage increased to ~1.4 TB. Puma runs on Rocky Linux 9. As is the case for our other supercomputers, we use the RFP process to get the best value for our financial resources, that meet our technical requirements. This time Penguin Computing one with AMD processors. This is tremendously valuable as each node comes with: Two AMD Zen2 48 core processors 512GB RAM 25Gb path to storage 25Gb path to other nodes for MPI 2TB internal NVME disk (largely available as /tmp) Qumulo all flash storage array for shared filesystems Two large memory nodes with 3TB memory and the same processors and memory as the other nodes Six nodes with four Nvidia V100S GPU's each Ocelote arrived in 2016. Lenovo's Nextscale M5 technology was the winner of the RFP mainly on price, performance and meeting our specific requirements. Ocelote has one large memory node with 2TB of memory and 46 nodes with Nvidia P100 GPUs for GPU-accelerated workflows. This cluster is actually the next generation of the IBM cluster we call El Gato. Lenovo purchased IBM's Intel server line in 2015. In 2021, Ocelote's operating system was upgraded from CentOS6 to CentOS7 and was configured to use SLURM, like Puma. It will continue until it is either too expensive to maintain or it is replaced by something else. - Intel Haswell V3 28 core processors - 192GB RAM per node - FDR infiniband for fast MPI interconnect - Qumulo all flash storage array (all HPC storage is integrated into one array) - One large memory node with 2TB RAM, Intel Ivy Bridge V2 48 cores - 46 nodes with Nvidia P100 GPU's Implemented at the start of 2014, El Gato has been reprovisioned with CentOS 7 and new compilers and libraries. From July 2021 it has been using Slurm for job submission. El Gato is our smallest cluster with 130 standard nodes each with 16 CPUs. Purchased by an NSF MRI grant by researchers in Astronomy and SISTA. Compute UArizona HPC systems are available to all university faculty, staff, undergraduate and graduate students, postdocs, and designated campus colleagues (DCCs) at no cost. Researchers have access to compute resources on our three clusters Puma, Ocelote, and El Gato located in our data center. Presently each research group is provided with a free standard monthly allocation on each: 100,000 CPU-hours on Puma, 70,000 CPU-hours on Ocelote, and 7,000 CPU-hours on El Gato. Funding Sources UArizona HPC systems are funded through the UArizona Research Office (RII) and CIO/UITS (Chief Information Officer, and University Information Technology Services). Staff is funded to administer the systems and provide consulting services (no charge) for all researchers. Regulated Research These resources specifically do not support Regulated Research, which might be ITAR, HIPAA or CUI (Controlled Unclassified Information). For more information on services that can support regulated research, see: HIPAA support services and CUI support services . News ¶ Puma OS Update As of January 29th, 2025, Puma’s operating system has been updated from CentOS 7 to Rocky Linux 9. Need help transitioning to the new operating system? Visit our migration documentation for detailed instructions. Fall Semester Workshops This Fall semester we are conducting the workshops in a different manner. Rather than compress them into a week, there will be one each Friday at 11am. We plan to use a hybrid modality – you can attend in person which provides greater opportunity to engage; or attend virtually by Zoom. In person sessions will be held in Weaver Science and Engineering Library Rm 212. There will be a recorded version made available on YouTube. Registration Form Calendar July 2024 Maintenance User portal interface change for mobile compatibility. Open OnDemand graphical jobs limited to four days, reduced from 10 days. For workflows that need longer than four days, batch jobs can be used. Contact our consultants for help if you're unsure how to do this. New partitions have been introduced for GPU jobs. This will prevent non-GPU jobs from running on GPU nodes, improving availability. See batch directives for more information on how to request GPU nodes. New Ocelote GPUs We recently added 22 new P100 GPUs to Ocelote. Need to request multiple GPUs on a node and you're finding Puma queue times too slow? You can now request two GPUs per node on Ocelote using --gres=gpu:2 . Acknowledgements ¶ Published research that utilized UArizona HPC resources should follow our guidelines on how to acknowledge us. If you wish for your research to be featured in our Results page, please contact HPC consult with news of the publication! We respectfully acknowledge the University of Arizona is on the land and territories of Indigenous peoples. Today, Arizona is home to 22 federally recognized tribes, with Tucson being home to the O’odham and the Yaqui. Committed to diversity and inclusion, the University strives to build sustainable relationships with sovereign Native Nations and Indigenous communities through education offerings, partnerships, and community service. Was this page informative? Thanks for your feedback! Thank you for your feedback! Have ideas to improve our site? Please share them in our quick, anonymous feedback form . Your input helps us enhance our documentation! Back to top Website Feedback --> University of Arizona Research Computing | 2026-01-13T08:49:12 |
https://dev.to/kelina_cowell_qa/exploratory-testing-on-mobile-the-messy-checks-that-find-real-bugs-2ldg#comments | Exploratory testing on mobile: the messy checks that find real bugs - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Kelina Cowell Posted on Dec 22, 2025 • Originally published at kelinacowellqa.github.io Exploratory testing on mobile: the messy checks that find real bugs # gamedev # ux # testing # qualityassurance Portfolio version (canonical, with full context and styling): https://kelinacowellqa.github.io/Manual-QA-Portfolio-Kelina-Cowell/articles/exploratory-testing.html TL;DR What it is: risk-driven exploratory sessions where design, execution, and analysis happen together. Platform context: mobile (Android), where interruptions and device state changes are normal. Timebox: short focused sessions, not long wandering playthroughs. Approach: charters, controlled variation, observation-led decisions. Outputs: defects and observations that explain behaviour, with enough context to reproduce. Exploratory testing on mobile in practice: chartered, timeboxed sessions with controlled variation, producing defects, context notes, bug reports, and evidence. About this article Exploratory testing is often summarised as “testing without scripts”. In real mobile QA work, that description is incomplete. This article explains exploratory testing on mobile as it is actually applied in a practical workflow: session structure , risk focus , interruptions and recovery , and how this approach consistently finds issues that scripted checks often miss. Examples are drawn from a real Android mobile game pass, but the focus here is the method , not the case study. What exploratory testing actually means In practice, exploratory testing is a way of working where test design, execution, and analysis happen together. You are not following a pre-written script. You are observing behaviour and choosing the next action based on risk, evidence, and what the product is doing right now. That does not mean “random testing”. It means structured freedom: you keep a clear intent, and you keep your changes controlled so outcomes remain interpretable. Why exploratory testing matters on mobile Mobile products rarely fail under perfect conditions. They fail when something changes unexpectedly. On Android especially, many failure modes are contextual and lifecycle-driven. Alarms, calls, and notifications interrupt active flows. Apps are backgrounded and resumed repeatedly. Network quality changes during critical moments (login, purchase, reward claim). UI must remain usable on small screens and unusual aspect ratios. Applied insight: For mobile exploration, compare performance across devices where possible and probe interruptions: lock screen, phone calls, network drops, switching Wi-Fi/data, rotation, and kill/restart recovery. Radu Posoi, Founder, AlkoTech Labs (ex Ubisoft QA Lead) Exploratory sessions target these risks directly instead of assuming a clean uninterrupted journey. Exploratory testing workflow in practice Exploratory test charters, not scripts Sessions start with a charter: a short statement of intent. For example, “Explore reward claim behaviour under interruptions” or “Explore recovery after network loss”. The charter defines focus , not steps. Timeboxed exploratory testing sessions Exploratory testing works best in short sessions. Timeboxing forces prioritisation and prevents unfocused wandering. Typical sessions range from 20 to 45 minutes . Applied insight: Before you go deep, verify the basics first. A short daily smoke test protects the golden path, so deeper exploratory work is not wasted rediscovering obvious breakage. Nathan Glatus, ex Senior QA / Game Integrity Analyst (Fortnite, ex Epic Games) Controlled variation: one variable at a time Rather than changing everything at once, one variable is altered at a time: lock state, network type, lifecycle state. This keeps results interpretable and defects reproducible. Exploratory testing session checklist (charter, timebox, evidence) Charter chosen (risk and focus) Timebox set (20 to 45 mins) Variables defined (one at a time) Notes captured live Evidence captured when it happens Bug report drafted while context is fresh Common mobile bugs found with exploratory testing Exploratory testing is effective at surfacing issues that are low-frequency but high-impact, especially on mobile. Soft locks where the UI appears responsive but progression is blocked. State inconsistencies after backgrounding or relaunch. Audio or visual desynchronisation after OS-level events. UI scaling or readability problems that only appear in specific contexts. Android exploratory testing example: reward claim soft lock Scenario: reward claim flow under interruptions (Android). During an exploratory session, repeatedly backgrounding and resuming the app while a reward flow was mid-animation triggered a soft lock: the UI stayed visible, but the claim state never completed, blocking progression. This did not appear during clean uninterrupted smoke testing because the trigger was lifecycle timing and state recovery. Why this matters: it is normal user behaviour on mobile, not a rare edge case. Exploratory sessions hit it because they are designed to. Bug reporting for exploratory testing: notes and evidence Because exploratory testing is adaptive, notes and evidence matter more than in scripted runs. Findings must be supported with enough context to reproduce and diagnose. Applied insight: High impact exploratory bugs live or die by their evidence. Capture context (client and device state), include frequency (for example 3/3 or 10/13), and attach a clear repro so the issue is actionable. Nathan Glatus, ex Senior QA / Game Integrity Analyst (Fortnite, ex Epic Games) Screen recordings captured during the session, not recreated later. Notes that include context, not just actions (device state, network, lifecycle transitions). Bug reports that clearly separate expected behaviour from actual behaviour. The goal is to make exploratory findings actionable, not anecdotal. Exploratory testing skills shown in this mobile pass Risk-based testing decisions Test charter creation and execution Defect analysis and clear bug reporting Reproduction step clarity under variable conditions Evidence-led communication Mobile UI and interaction awareness Device and network variation testing Key takeaways for mobile QA Exploratory testing is structured, not random. Mobile risk is contextual, not just functional. Interruptions and recovery deserve dedicated exploration. Good notes and evidence make exploratory work credible and actionable. Exploratory testing FAQ (mobile QA) How do you stop exploratory testing becoming random wandering? By using a clear charter, a strict timebox, and controlled variation. If you can’t explain what you were trying to learn in that session, the charter is too vague. What do you write down during an exploratory session? The variables that matter for reproduction: device state, network, lifecycle transitions, and what changed between attempts. Notes should capture context, not just button presses. How do you reproduce a bug found through exploration? First, reduce the scenario to the smallest set of steps that still triggers the issue. Then rerun it while changing one variable at a time until the trigger conditions are clear. What makes mobile exploratory testing different from PC or console? Mobile failure modes are often lifecycle and OS-driven: backgrounding, notifications, lock/unlock, network switching, permissions, battery and performance constraints. Normal user behaviour creates timing and recovery issues that clean runs will miss. Evidence and case study links Rebel Racing: Charter-based Exploratory & Edge-Case Testing (full artefacts and evidence): https://kelinacowellqa.github.io/Manual-QA-Portfolio-Kelina-Cowell/projects/rebel-racing/ QA Chronicles Issue 2: Rebel Racing: https://kelinacowellqa.github.io/QA-Chronicles-Kelina-Cowell/issues/issue-02-rebel-racing This dev.to post stays focused on the workflow. The case study links out to the workbook structure, runs, and evidence. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Kelina Cowell Follow I am a UK-based aspiring Game QA Tester, building hands-on experience through self-directed portfolio projects on shipped games across PC Game Pass, mobile, and VR. Location United Kingdom Work Game Qa Tester Joined Dec 21, 2025 More from Kelina Cowell Regression testing workflow: the risk first checks that keep releases stable # gamedev # testing # qualityassurance # ux Functional testing: the boring basics that catch real bugs # gametesting # qualityassurance # gamedev # ux 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/codemouse92/updated-opensource-tag-guidelines-55m5#aliases | Updated #opensource Tag Guidelines - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Jason C. McDonald Posted on Jul 17, 2019 • Edited on Apr 8, 2020 Updated #opensource Tag Guidelines # opensource # meta Updated 8 April 2020 The #opensource tag is awesome, but it's also been lacking a lot of focus. Is it for promoting projects? Talking about open source? Posting lists of the top 20 open source Javascript modules? It's hard to tell. In a way, because the lion's share of our technologies, libraries, tools, and projects are open source, nearly everything qualified for this tag before. It was becoming our site's junk drawer as it were - lots of nifty and useful stuff, but no semblance of organization to any of it. Since DEV.to rolled out Listings , I'm taking the opportunity to narrow the tag focus a bit. The goal is to give the #opensource tag clear topic boundaries, so Following it doesn't lead to a bunch of irrelevant posts leaking into your feed. New Guidelines I've updated the tag guidelines, but I wanted to lay out the changes here. Posts promoting a single project should go on Listings , or on #showdev or #news if it qualifies. Posts using or mentioning one or more open source projects should go on the appropriate tags for the relevant languages and technologies. This includes tutorials, "round ups", guides, comparisons, reviews, and the like. These typically land in #opensource, and are the main reason for the tag clutter. Announcements relating to your awesome project, including new features, releases, versions, and the like, should go on #news or Listings , or should be expanded out into a proper article (tutorial, maybe?) and posted on the appropriate technology tags. Open source contributor requests should go on #contributorswanted or Listings . If you're just bursting with pride at something you built, use the #showdev tag instead. "Roundups" and other lists of cool open source projects belong on #githunt . What Changed? All this mainly means the #opensource tag is no longer valid merely if the project(s) being discusses happen to be open source! To put that another way, here's a few theoretical topics which would have been #opensource material before, but aren't now. "Top 10 Open Source Python Data Modules" ( #python ) "My Awesome Data Visualizer in Go" ( #go , #showdev ) "Looking for contributors to Supercoolproject" (Listings or #contributorswanted ) "What I did on my Perl project this week" ( #perl , #devjournal , possibly #showdev ) "Installing Epictool on Ubuntu" ( #ubuntu ) "5 Open Source Alternatives to AWS" ( #cloud ) What SHOULD It Be? Articles in this tag should be about at least one of these three broad topics: Organizing, managing, running, contributing to, or working in an Open Source project. Open Source philosophy, licensing, and/or practical and legal topics thereof. Advocacy and adoption of Open Source philosophy . Aliases #foss and #freesoftware have been aliased over to #opensource (thanks @michaeltharrington !) and the tag info updated to account for that. I know that Free Software is culturally distinct from Open Source, but as the former is always compliant to a subset of the latter, having one tag for all just makes sense. Guideline Enforcement I won't be applying this to any posts before July 17th 2019 (retroactive guidelines just aren't fair). If the #opensource tag is used incorrectly in new posts, I'll remove it and provide a friendly reminder, along with suggestions on better tags to use. I know it'll take a while to get used to the updated rules, so don't worry if you miss it a few dozen times. Top comments (8) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand Ben Halpern Ben Halpern Ben Halpern Follow A Canadian software developer who thinks he’s funny. Email ben@forem.com Location NY Education Mount Allison University Pronouns He/him Work Co-founder at Forem Joined Dec 27, 2015 • Jul 17 '19 Dropdown menu Copy link Hide Well thought out Jason. I'll be following along. We'll have some more easily accessible tag guidelines adjacent to the editor coming soon so folks can understand the instructions without being caught off guard by doing it wrong. As more folks define their guidelines, my biggest worry is what a lot of forums become when mods are overbearing. So I'm glad this is well thought out and well described. @michaeltharrington let's Jason well with this and we'll coordinate on functionality that needs to ship. Like comment: Like comment: 5 likes Like Comment button Reply Collapse Expand Michael Tharrington Michael Tharrington Michael Tharrington Follow I'm a friendly, non-dev, cisgender guy from NC who enjoys playing music/making noise, hiking, eating veggies, and hanging out with my best friend/wife + our 3 kitties + 1 greyhound. Email mct3545@gmail.com Location North Carolina Education BFA in Creative Writing Pronouns he/him Work Senior Community Manager at DEV Joined Oct 24, 2017 • Jul 17 '19 Dropdown menu Copy link Hide Agreed! This is very well thought out. I think this tag will definitely benefit from more focus. Jason, feel free to hit me up if you need a hand with anything. I'm happy to help! Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Jul 17 '19 Dropdown menu Copy link Hide Thanks, Michael and Ben! Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand William Antonelli William Antonelli William Antonelli Follow Joined Mar 7, 2019 • Jul 18 '19 Dropdown menu Copy link Hide This is a list of what not to use the tag for. Can you give some examples of what we would use it for? I think that would be easier to understand. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Jul 18 '19 Dropdown menu Copy link Hide No problem. From the tag info: To keep this tag clean and meaningful, please ensure your post fits into at least one of the following categories: * Organizing, managing, running, or working in an Open Source project. * Open Source philosophy, licensing, and/or practical and legal topics thereof. * Advocacy and adoption of Open Source technology. I'll add that to the post. Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Frederik 👨💻➡️🌐 Creemers Frederik 👨💻➡️🌐 Creemers Frederik 👨💻➡️🌐 Creemers Follow I'm never sure what to put in a bio. If there's anything you want to know, don't be afraid to ask! Email frederikcreemers@gmail.com Location Maastricht, the Netherlands Education Knowledge Engineering & Data Science at Maastricht University Pronouns he/him Work Developer at TalkJS Joined Mar 22, 2017 • Jul 17 '19 Dropdown menu Copy link Hide I think the #githunt tag is also relevant here. Looking at some of its recent posts, it could also use some enforcement of its guidelines. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Aug 3 '19 • Edited on Aug 3 • Edited Dropdown menu Copy link Hide Y'know, they're always looking for more tag moderators, and I agree that #githunt needs some love. Maybe that'd be something you'd be good at? (Contact yo@dev.to if you're interested.) Like comment: Like comment: 1 like Like Comment button Reply Some comments may only be visible to logged-in visitors. Sign in to view all comments. Some comments have been hidden by the post's author - find out more Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 More from Jason C. McDonald 5 Ways to Retain Open Source Contributors # opensource # culture # projectmanagement Social Lifespan of Posts # meta # discuss Introducing #devjournal # devjournal # meta 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/codemouse92/updated-opensource-tag-guidelines-55m5#guideline-enforcement | Updated #opensource Tag Guidelines - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Jason C. McDonald Posted on Jul 17, 2019 • Edited on Apr 8, 2020 Updated #opensource Tag Guidelines # opensource # meta Updated 8 April 2020 The #opensource tag is awesome, but it's also been lacking a lot of focus. Is it for promoting projects? Talking about open source? Posting lists of the top 20 open source Javascript modules? It's hard to tell. In a way, because the lion's share of our technologies, libraries, tools, and projects are open source, nearly everything qualified for this tag before. It was becoming our site's junk drawer as it were - lots of nifty and useful stuff, but no semblance of organization to any of it. Since DEV.to rolled out Listings , I'm taking the opportunity to narrow the tag focus a bit. The goal is to give the #opensource tag clear topic boundaries, so Following it doesn't lead to a bunch of irrelevant posts leaking into your feed. New Guidelines I've updated the tag guidelines, but I wanted to lay out the changes here. Posts promoting a single project should go on Listings , or on #showdev or #news if it qualifies. Posts using or mentioning one or more open source projects should go on the appropriate tags for the relevant languages and technologies. This includes tutorials, "round ups", guides, comparisons, reviews, and the like. These typically land in #opensource, and are the main reason for the tag clutter. Announcements relating to your awesome project, including new features, releases, versions, and the like, should go on #news or Listings , or should be expanded out into a proper article (tutorial, maybe?) and posted on the appropriate technology tags. Open source contributor requests should go on #contributorswanted or Listings . If you're just bursting with pride at something you built, use the #showdev tag instead. "Roundups" and other lists of cool open source projects belong on #githunt . What Changed? All this mainly means the #opensource tag is no longer valid merely if the project(s) being discusses happen to be open source! To put that another way, here's a few theoretical topics which would have been #opensource material before, but aren't now. "Top 10 Open Source Python Data Modules" ( #python ) "My Awesome Data Visualizer in Go" ( #go , #showdev ) "Looking for contributors to Supercoolproject" (Listings or #contributorswanted ) "What I did on my Perl project this week" ( #perl , #devjournal , possibly #showdev ) "Installing Epictool on Ubuntu" ( #ubuntu ) "5 Open Source Alternatives to AWS" ( #cloud ) What SHOULD It Be? Articles in this tag should be about at least one of these three broad topics: Organizing, managing, running, contributing to, or working in an Open Source project. Open Source philosophy, licensing, and/or practical and legal topics thereof. Advocacy and adoption of Open Source philosophy . Aliases #foss and #freesoftware have been aliased over to #opensource (thanks @michaeltharrington !) and the tag info updated to account for that. I know that Free Software is culturally distinct from Open Source, but as the former is always compliant to a subset of the latter, having one tag for all just makes sense. Guideline Enforcement I won't be applying this to any posts before July 17th 2019 (retroactive guidelines just aren't fair). If the #opensource tag is used incorrectly in new posts, I'll remove it and provide a friendly reminder, along with suggestions on better tags to use. I know it'll take a while to get used to the updated rules, so don't worry if you miss it a few dozen times. Top comments (8) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand Ben Halpern Ben Halpern Ben Halpern Follow A Canadian software developer who thinks he’s funny. Email ben@forem.com Location NY Education Mount Allison University Pronouns He/him Work Co-founder at Forem Joined Dec 27, 2015 • Jul 17 '19 Dropdown menu Copy link Hide Well thought out Jason. I'll be following along. We'll have some more easily accessible tag guidelines adjacent to the editor coming soon so folks can understand the instructions without being caught off guard by doing it wrong. As more folks define their guidelines, my biggest worry is what a lot of forums become when mods are overbearing. So I'm glad this is well thought out and well described. @michaeltharrington let's Jason well with this and we'll coordinate on functionality that needs to ship. Like comment: Like comment: 5 likes Like Comment button Reply Collapse Expand Michael Tharrington Michael Tharrington Michael Tharrington Follow I'm a friendly, non-dev, cisgender guy from NC who enjoys playing music/making noise, hiking, eating veggies, and hanging out with my best friend/wife + our 3 kitties + 1 greyhound. Email mct3545@gmail.com Location North Carolina Education BFA in Creative Writing Pronouns he/him Work Senior Community Manager at DEV Joined Oct 24, 2017 • Jul 17 '19 Dropdown menu Copy link Hide Agreed! This is very well thought out. I think this tag will definitely benefit from more focus. Jason, feel free to hit me up if you need a hand with anything. I'm happy to help! Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Jul 17 '19 Dropdown menu Copy link Hide Thanks, Michael and Ben! Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand William Antonelli William Antonelli William Antonelli Follow Joined Mar 7, 2019 • Jul 18 '19 Dropdown menu Copy link Hide This is a list of what not to use the tag for. Can you give some examples of what we would use it for? I think that would be easier to understand. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Jul 18 '19 Dropdown menu Copy link Hide No problem. From the tag info: To keep this tag clean and meaningful, please ensure your post fits into at least one of the following categories: * Organizing, managing, running, or working in an Open Source project. * Open Source philosophy, licensing, and/or practical and legal topics thereof. * Advocacy and adoption of Open Source technology. I'll add that to the post. Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Frederik 👨💻➡️🌐 Creemers Frederik 👨💻➡️🌐 Creemers Frederik 👨💻➡️🌐 Creemers Follow I'm never sure what to put in a bio. If there's anything you want to know, don't be afraid to ask! Email frederikcreemers@gmail.com Location Maastricht, the Netherlands Education Knowledge Engineering & Data Science at Maastricht University Pronouns he/him Work Developer at TalkJS Joined Mar 22, 2017 • Jul 17 '19 Dropdown menu Copy link Hide I think the #githunt tag is also relevant here. Looking at some of its recent posts, it could also use some enforcement of its guidelines. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Aug 3 '19 • Edited on Aug 3 • Edited Dropdown menu Copy link Hide Y'know, they're always looking for more tag moderators, and I agree that #githunt needs some love. Maybe that'd be something you'd be good at? (Contact yo@dev.to if you're interested.) Like comment: Like comment: 1 like Like Comment button Reply Some comments may only be visible to logged-in visitors. Sign in to view all comments. Some comments have been hidden by the post's author - find out more Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 More from Jason C. McDonald 5 Ways to Retain Open Source Contributors # opensource # culture # projectmanagement Social Lifespan of Posts # meta # discuss Introducing #devjournal # devjournal # meta 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . Forem © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://canada-holidays.ca/ | Canadian statutory holidays in 2026 Skip to main content Canada Holidays Menu All regions About API Feedback All regions About API Feedback Canada’s next statutory holiday is Family Day , on February 16 That’s in about 1 month . Observed in AB , BC , NB , ON , and SK . Nationwide View by region See Nationwide Federal ────────── Alberta British Columbia Manitoba New Brunswick Newfoundland and Labrador Nova Scotia Northwest Territories Nunavut Ontario Prince Edward Island Quebec Saskatchewan Yukon View by year holidays for 2025 2026 2027 2028 2029 2030 2031 Submit → Canada statutory holidays in 2026 Add to your calendar January 1, Thursday New Year’s Day National holiday February 16, Monday Louis Riel Day MB February 16, Monday Islander Day PEI February 16, Monday Family Day AB , BC , NB , ON , SK February 16, Monday Heritage Day NS March 17, Tuesday Observed: March 16, Monday Saint Patrick’s Day is observed on the Monday closest to March 17. Saint Patrick’s Day NL April 3, Friday Good Friday National holiday April 6, Monday Easter Monday Federal holiday April 23, Thursday Observed: April 20, Monday Saint George’s Day is observed on the Monday closest to April 23. Saint George’s Day NL May 18, Monday National Patriots’ Day QC May 18, Monday Victoria Day Federal holiday , AB , BC , MB , NT , NU , ON , SK , YT June 21, Sunday National Indigenous Peoples Day NT , YT June 24, Wednesday Saint-Jean-Baptiste Day QC June 24, Wednesday Observed: June 22, Monday Discovery Day is observed on the Monday closest to June 24. Discovery Day NL July 1, Wednesday Canada Day National holiday July 9, Thursday Nunavut Day NU July 12, Sunday Observed: July 13, Monday Orangemen’s Day is observed on the Monday closest to July 12. Orangemen’s Day NL August 3, Monday Civic Holiday Federal holiday , NT , NU August 3, Monday British Columbia Day BC August 3, Monday New Brunswick Day NB August 3, Monday Saskatchewan Day SK August 5, Wednesday Regatta Day NL August 17, Monday Discovery Day YT September 7, Monday Labour Day National holiday September 30, Wednesday National Day for Truth and Reconciliation Federal holiday , BC , NT , PEI , YT September 30, Wednesday Orange Shirt Day MB October 12, Monday Thanksgiving Federal holiday , AB , BC , MB , NT , NU , ON , QC , SK , YT November 11, Wednesday Remembrance Day Federal holiday , AB , BC , NB , NL , NT , NU , PEI , SK , YT December 25, Friday Christmas Day National holiday December 26, Saturday Observed: December 28, Monday When Boxing Day falls on a weekend, it is observed the following Monday. Boxing Day Federal holiday , NL , ON Canada statutory holidays in 2027 All sources Back to top | 2026-01-13T08:49:12 |
https://dev.to/myip_casa_6da283ec3f32667/how-to-quickly-diagnose-network-issues-using-browser-based-tools-2p35 | How to Quickly Diagnose Network Issues Using Browser-Based Tools - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse myip casa Posted on Dec 27, 2025 How to Quickly Diagnose Network Issues Using Browser-Based Tools # security # webdev # privacy # networking When something goes wrong with your internet connection, diagnosing the issue can be surprisingly difficult. Is it your ISP? Your DNS? A VPN misconfiguration? A blocked port? A certificate problem? Most of the time, you don’t need heavy desktop software or complex CLI commands. A few well-designed browser-based tools can already give you clear answers. In this article, I’ll walk through the most common network checks you may need and how to run them quickly from your browser. 1. Checking Your Public IP Address The first step in many troubleshooting scenarios is knowing which IP address the internet sees. This is especially useful if you: Use a VPN or proxy Host services from home Debug firewall or routing issues Want to verify IPv4 vs IPv6 connectivity A good IP checker should show: Your public IP IP version (IPv4 / IPv6) Approximate geolocation ASN / ISP information This immediately tells you whether your traffic is routed as expected. 2. Testing Open and Blocked Ports If a service is unreachable, the problem is often a closed or filtered port. Typical cases: A game server not accessible from outside A self-hosted service behind NAT Firewall or router misconfiguration A browser-based port checker lets you quickly verify whether a port is reachable without touching your server configuration. It’s a simple way to confirm whether the issue is local or network-related. 3. Detecting DNS Leaks (Especially with VPNs) Using a VPN does not automatically guarantee DNS privacy. If your DNS requests bypass the tunnel, your ISP may still see: The domains you access Your approximate location A DNS leak test shows: Which DNS resolvers are actually used Whether they belong to your ISP, VPN provider, or a third party This check is essential for VPN users and privacy-conscious setups. 4. Understanding Network Paths with Traceroute When latency is high or connections fail intermittently, traceroute helps identify where the problem occurs. It reveals: Each network hop between you and the destination Latency at every step Routing changes or congestion points A browser-based traceroute is useful when: You can’t install tools You’re debugging from a restricted environment You want a quick overview without CLI output parsing 5. Testing Latency and Connection Quality Speed alone doesn’t tell the whole story. Latency, jitter, and packet stability are critical for: Gaming VoIP Video calls Remote work A lightweight latency test gives immediate insight into connection quality beyond raw bandwidth. 6. Checking SSL/TLS Certificates SSL issues are a frequent source of errors: Expired certificates Invalid chains Wrong hostnames An online SSL checker lets you: Inspect certificate validity Check expiration dates Verify TLS configuration This is especially useful for quick production checks or during certificate renewals. Why Browser-Based Tools Matter Browser-based diagnostics have a few major advantages: No installation No admin privileges required Cross-platform Easy to share and reproduce results That’s why I built myIP.casa, a small collection of fast, ad-free network diagnostic tools that run entirely in the browser. 👉 https://myip.casa The goal is not to replace advanced tools, but to make common network checks accessible, quick, and readable. Final Thoughts Network issues often feel complex, but many can be identified in minutes with the right checks: IP visibility Port reachability DNS behavior Routing paths Latency SSL configuration Having simple tools available can save a lot of time, whether you’re debugging a server, testing a VPN, or just trying to understand how your connection behaves. If you have suggestions, missing checks, or feedback, feel free to share, improving clarity and usefulness is always the priority. Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse myip casa Follow Joined Dec 27, 2025 Trending on DEV Community Hot Prompt Engineering Won’t Fix Your Architecture # discuss # career # ai # programming I Didn’t “Become” a Senior Developer. I Accumulated Damage. # programming # ai # career # discuss AI should not be in Code Editors # programming # ai # productivity # discuss 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://usehooks.com/ | useHooks – The React Hooks Library A collection of modern, server-safe React hooks – from the ui.dev team npm i @uidotdev/usehooks Copy useBattery useClickAway useContinuousRetry useCopyToClipboard useCountdown useCounter useDebounce useDefault useDocumentTitle useEventListener useFavicon useFetch useGeolocation useHistoryState useHover useIdle useIntersectionObserver useInterval useIntervalWhen useIsClient useIsFirstRender useKeyPress useList useLocalStorage useLockBodyScroll useBattery useClickAway useContinuousRetry useCopyToClipboard useCountdown useCounter useDebounce useDefault useDocumentTitle useEventListener useFavicon useFetch useGeolocation useHistoryState useHover useIdle useIntersectionObserver useInterval useIntervalWhen useIsClient useIsFirstRender useKeyPress useList useLocalStorage useLockBodyScroll useLogger useLongPress useMap useMeasure useMediaQuery useMouse useNetworkState useObjectState useOrientation usePageLeave usePreferredLanguage usePrevious useQueue useRandomInterval useRenderCount useRenderInfo useScript useSessionStorage useSet useThrottle useTimeout useToggle useVisibilityChange useWindowScroll useWindowSize useLogger useLongPress useMap useMeasure useMediaQuery useMouse useNetworkState useObjectState useOrientation usePageLeave usePreferredLanguage usePrevious useQueue useRandomInterval useRenderCount useRenderInfo useScript useSessionStorage useSet useThrottle useTimeout useToggle useVisibilityChange useWindowScroll useWindowSize Sort: Popular Name It’s dangerous to go alone! Master React by learning how to build useHooks yourself. useDebounce Delay the execution of function or state update with useDebounce. useLocalStorage Store, retrieve, and synchronize data from the browser’s localStorage API with useLocalStorage useWindowSize Track the dimensions of the browser window with useWindowSize. usePrevious Track the previous value of a variable with usePrevious. useIntersectionObserver Track and manage the visibility of your DOM elements within the viewport with useIntersectionObserver. useNetworkState Monitor and adapt to network conditions seamlessly with useNetworkState. useMediaQuery Subscribe and respond to media query changes with useMediaQuery. useOrientation Manage and respond to changes in device orientation with useOrientation. useSessionStorage Store, retrieve, and synchronize data from the browser’s session storage with useSessionStorage. usePreferredLanguage Adapt to user language preferences dynamically with usePreferredLanguage. useFetch Fetch data with accurate states, caching, and no stale responses using useFetch. useContinuousRetry Automates retries of a callback function until it succeeds with useContinuousRetry useVisibilityChange Track document visibility and respond to changes with useVisibilityChange. There’s no better way to learn useHooks than by building it yourself. useScript Load and manage external JavaScript scripts with useScript. useRenderInfo Debug renders and improve performance with useRenderInfo. useRenderCount Identify unnecessary re-renders and monitor update frequency with useRenderCount. useRandomInterval Execute a callback function at a random interval with useRandomInterval. useIntervalWhen Create dynamic timers that can be started, paused, or resumed with useIntervalWhen. useInterval Schedule periodic actions like data polling or animations with useInterval. useLockBodyScroll Temporarily disable scrolling on the document body with useLockBodyScroll. useCountdown Create countdown timers using useCountdown. useIsClient Determine whether the code is running on the client-side or server-side with useIsClient. useQueue Add, remove, and clear element from a queue data structure with useQueue. useHover Track whether an element is being hovered over with useHover. useTimeout Create delayed actions or timed events using useTimeout. Please give us your money. useEventListener Listen for events on a target element with useEventListener. useKeyPress Detect and perform actions on key press events with useKeyPress. useMap Synchronize and update state based on the Map data structure with useMap. useThrottle Throttle computationally expensive operations with useThrottle. useSet Synchronize and update state based on the Set data structure with useSet. useCopyToClipboard Copy text to the clipboard using useCopyToClipboard. useBattery Track the battery status of a user’s device with useBattery. useIdle Detect user inactivity with useIdle. useToggle A hook to toggle a boolean value with useToggle. useHistoryState Add undo / redo functionality with useHistoryState. useGeolocation Access and monitor a user's geolocation (after they give permission) with useGeolocation. usePageLeave Track when a user navigates away from a webpage with usePageLeave. The all new interactive way to master modern React (for fun and profit). useObjectState Manage complex state objects with useObjectState. useLogger Debug lifecycle events with useLogger. useDocumentTitle Dynamically update the title of a webpage with useDocumentTitle. useIsFirstRender Differentiate between the first and subsequent renders with useIsFirstRender. useLongPress Enable precise control of long-press interactions for both touch and mouse events with useLongPress. useFavicon Dynamically update the favicon with useFavicon. useDefault Manage state with default values using useDefault. useWindowScroll Track and manipulate the scroll position of a web page with useWindowScroll. useMeasure Effortlessly measure and track your component’s dimensions with useMeasure. useClickAway Detect clicks outside of specific component with useClickAway. useList Manage and manipulate lists with useList. useCounter Manage a counter value with minimum and maximum limits with useCounter. useMouse Track and retrieve the position of the mouse cursor with useMouse. by ui.dev View the Repo JavaScript Newsletter React Newsletter Learn React Learn React Query | 2026-01-13T08:49:12 |
https://dev.to/dastasoft | dastasoft - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions dastasoft Senior Software Engineer Joined Joined on Feb 17, 2020 Personal website https://blog.dastasoft.com/ github website twitter website Work Senior Software Engineer Five Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least five years. Got it Close Beloved Comment Awarded for making a well-loved comment, as voted on with 25 heart (❤️) reactions by the community. Got it Close 2 Top 7 Awarded for having a post featured in the weekly "must-reads" list. 🙌 Got it Close Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. 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Got it Close 4 Week Writing Streak You've posted at least one post per week for 4 consecutive weeks! Got it Close Show all 14 badges More info about @dastasoft Organizations Nimbel GitHub Repositories TreasureHunter C++ cmd game of open treasure chest guessing the number C++ handy-tools A collection of web tools to make your life easier. Made with Next.js and Chakra UI. JavaScript • 10 stars spreadsheet-poc Generate a SSG with Next.js from a Google Spreadsheet changes JavaScript • 3 stars dastasoft-portfolio Personal portfolio made with React and Styled Components. JavaScript • 1 star project-holo Jitsi video chat integration on top of React with Websockets to provide real time interactions between participants, create rooms and share screens. CSS • 7 stars memory-game Demo project to teach about Framer Motion animations on React projects. TypeScript • 8 stars redux-pokemon-tcg-shop Demo shop to show Redux Toolkit TypeScript • 6 stars blog Personal blog about tech made with Next.js's SSG, styled-components and Markdown, deployed with Vercel and converted to a PWA and Google Play app. JavaScript • 7 stars react-ui-components A React UI component library managed with Bit. JavaScript • 8 stars javascript_katas A collection of JavaScript challenges solved with TDD and GitHub Actions for CI. JavaScript • 1 star Skills/Languages React, Node, MongoDB, JavaScript, TypeScript, React Native, Next, Redux, Jest, SQL, Java. Currently learning Cypress, GraphQL, Redis, Godot. Currently hacking on Writing tech articles on different communities and on my blog, learning new webdev stuff everyday and creating video games with Godot. Available for I'm open to collaborate and also I love to talk about tech. Post 17 posts published Comment 114 comments written Tag 17 tags followed Pin Pinned How Every Web Developer Can Become FullStack With Node.js dastasoft dastasoft dastasoft Follow Sep 10 '21 How Every Web Developer Can Become FullStack With Node.js # beginners # node # javascript 241 reactions Comments 3 comments 25 min read Here's what every React Developer needs to know about TypeScript - Part 1 dastasoft dastasoft dastasoft Follow May 28 '21 Here's what every React Developer needs to know about TypeScript - Part 1 # beginners # react # javascript # typescript 216 reactions Comments 5 comments 21 min read Why you should use Chakra UI in React dastasoft dastasoft dastasoft Follow Apr 30 '21 Why you should use Chakra UI in React # react # webdev # nextjs # tutorial 98 reactions Comments 9 comments 11 min read How to get cool animations in your React projects dastasoft dastasoft dastasoft Follow Jun 8 '22 How to get cool animations in your React projects # webdev # javascript # beginners # react 12 reactions Comments Add Comment 14 min read Want to connect with dastasoft? Create an account to connect with dastasoft. You can also sign in below to proceed if you already have an account. Create Account Already have an account? Sign in Intro to MongoDB and Mongoose - How Every Web Developer Can Become FullStack With Node.js dastasoft dastasoft dastasoft Follow Mar 17 '22 Intro to MongoDB and Mongoose - How Every Web Developer Can Become FullStack With Node.js # beginners # node # database # javascript 23 reactions Comments Add Comment 17 min read How to get better and easier state management with Redux Toolkit dastasoft dastasoft dastasoft Follow Dec 1 '21 How to get better and easier state management with Redux Toolkit # beginners # react # redux # javascript 32 reactions Comments 3 comments 17 min read Explain Quantum Computers like I'm five dastasoft dastasoft dastasoft Follow Aug 18 '21 Explain Quantum Computers like I'm five # discuss # explainlikeimfive 6 reactions Comments 3 comments 1 min read Easy presentations with Fusuma and markdown dastasoft dastasoft dastasoft Follow Mar 25 '21 Easy presentations with Fusuma and markdown # beginners # tutorial # markdown # react 6 reactions Comments Add Comment 6 min read What changes can mixed reality UIs bring to webdev? dastasoft dastasoft dastasoft Follow Mar 3 '21 What changes can mixed reality UIs bring to webdev? # discuss # watercooler 2 reactions Comments Add Comment 1 min read Como montar un blog estático con Next.js y dev.to como CMS dastasoft dastasoft dastasoft Follow for Nimbel Nov 3 '20 Como montar un blog estático con Next.js y dev.to como CMS # nextjs # react # javascript # spanish 40 reactions Comments 2 comments 12 min read Simple Static Blog with Next.js and dev.to as CMS dastasoft dastasoft dastasoft Follow for Nimbel Oct 26 '20 Simple Static Blog with Next.js and dev.to as CMS # nextjs # react # javascript # english 30 reactions Comments 2 comments 12 min read What supouses Deno for front end devs? dastasoft dastasoft dastasoft Follow May 13 '20 What supouses Deno for front end devs? # discuss # deno # webdev 6 reactions Comments 1 comment 1 min read Styling in React dastasoft dastasoft dastasoft Follow Mar 15 '20 Styling in React # react # css # javascript # tutorial 68 reactions Comments 8 comments 7 min read Besides dev.to how you do networking? dastasoft dastasoft dastasoft Follow Mar 6 '20 Besides dev.to how you do networking? # discuss # watercooler 5 reactions Comments 1 comment 1 min read Simple Animated Circle Bar as React Component dastasoft dastasoft dastasoft Follow Mar 5 '20 Simple Animated Circle Bar as React Component # beginners # react # javascript # tutorial 39 reactions Comments 3 comments 6 min read Simple React boilerplate dastasoft dastasoft dastasoft Follow Feb 29 '20 Simple React boilerplate # react # javascript # beginners # tutorial 83 reactions Comments 1 comment 5 min read How is your approach to manage large form validations in React? dastasoft dastasoft dastasoft Follow Feb 21 '20 How is your approach to manage large form validations in React? # react # javascript # webdev 9 reactions Comments 2 comments 1 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/t/architecture/page/6#main-content | Architecture Page 6 - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Architecture Follow Hide The fundamental structures of a software system. Create Post Older #architecture posts 3 4 5 6 7 8 9 10 11 Posts Left menu 👋 Sign in for the ability to sort posts by relevant , latest , or top . Right menu Trigger Logic Causing Recursive Updates or Data Duplication Selavina B Selavina B Selavina B Follow Jan 8 Trigger Logic Causing Recursive Updates or Data Duplication # architecture # backend # codequality # tutorial Comments Add Comment 3 min read STOP Building "Zombie" Websites: A Dev’s Guide to Architecture vs. Templates Best Tech Company Best Tech Company Best Tech Company Follow Jan 8 STOP Building "Zombie" Websites: A Dev’s Guide to Architecture vs. Templates # architecture # performance # webdev Comments Add Comment 2 min read My Thoughts on Frontend Architecture & Framework Choices for 2026 samurai-techlead samurai-techlead samurai-techlead Follow Jan 6 My Thoughts on Frontend Architecture & Framework Choices for 2026 # webdev # programming # frontend # architecture Comments Add Comment 4 min read When Factor Libraries Meet Real-World Execution Constraints yuer yuer yuer Follow Jan 8 When Factor Libraries Meet Real-World Execution Constraints # architecture # dataengineering # softwareengineering Comments Add Comment 2 min read How to Integrate Multiple LLM Providers Without Turning Your Codebase Into a Mess - Provider Strategy in Practice Danilo Assis Danilo Assis Danilo Assis Follow Jan 9 How to Integrate Multiple LLM Providers Without Turning Your Codebase Into a Mess - Provider Strategy in Practice # ai # javascript # node # architecture 2 reactions Comments Add Comment 4 min read La función analítica no es autoridad: un límite crítico en sistemas con IA Antonio Jose Socorro Marin Antonio Jose Socorro Marin Antonio Jose Socorro Marin Follow Jan 8 La función analítica no es autoridad: un límite crítico en sistemas con IA # discuss # ai # architecture # spanish Comments Add Comment 1 min read Storing large files with DynamoDB and S3 - the easy way Leandro Damascena Leandro Damascena Leandro Damascena Follow Jan 8 Storing large files with DynamoDB and S3 - the easy way # architecture # aws # python # serverless Comments Add Comment 3 min read Most “Private” Apps Still Leak More Than You Think PanamaSea_Studios PanamaSea_Studios PanamaSea_Studios Follow Jan 8 Most “Private” Apps Still Leak More Than You Think # privacy # security # networking # architecture Comments Add Comment 2 min read I thought plugging in LangSmith would solve agentic AI monitoring Benedict L Benedict L Benedict L Follow Jan 6 I thought plugging in LangSmith would solve agentic AI monitoring # agents # architecture # llm # monitoring Comments Add Comment 2 min read Latência: O Novo Gargalo da Arquitetura de Software (e Como Vencê-lo) Eduardo Rosa Eduardo Rosa Eduardo Rosa Follow Jan 7 Latência: O Novo Gargalo da Arquitetura de Software (e Como Vencê-lo) # architecture # networking # performance Comments Add Comment 4 min read Keeping Telemetry Defensible Through Dead Zones applekoiot applekoiot applekoiot Follow Jan 8 Keeping Telemetry Defensible Through Dead Zones # architecture # data # iot # networking Comments Add Comment 1 min read The Missing Link: Triggering Serverless Events from Legacy Databases with AWS DMS CK CK CK Follow Jan 7 The Missing Link: Triggering Serverless Events from Legacy Databases with AWS DMS # aws # serverless # architecture # dms Comments Add Comment 4 min read Partner AWS y founder de mí propia startup: Vorhealth(reflexión de vacaciones) Paola Ponce Paola Ponce Paola Ponce Follow Jan 7 Partner AWS y founder de mí propia startup: Vorhealth(reflexión de vacaciones) # architecture # aws # devops # startup Comments Add Comment 2 min read TCP vs UDP: What’s the Difference for Video Streaming? Akeel Almas Akeel Almas Akeel Almas Follow Jan 8 TCP vs UDP: What’s the Difference for Video Streaming? # architecture # networking # performance Comments Add Comment 13 min read Cohesion Is Not What You Think: A Formal Response to Eberhard Wolff Yannick Loth Yannick Loth Yannick Loth Follow Jan 8 Cohesion Is Not What You Think: A Formal Response to Eberhard Wolff # independentvariation # softwareengineering # architecture # cohesion Comments Add Comment 11 min read The Cascading Complexity of Offline-First Sync: Why CRDTs Alone Aren't Enough Aaron LaBeau Aaron LaBeau Aaron LaBeau Follow Jan 6 The Cascading Complexity of Offline-First Sync: Why CRDTs Alone Aren't Enough # database # offline # architecture # p2psync Comments Add Comment 19 min read How I Generate Both My Kotlin Backend and TypeScript Frontend from One Spec Lucas Dachman Lucas Dachman Lucas Dachman Follow Jan 6 How I Generate Both My Kotlin Backend and TypeScript Frontend from One Spec # webdev # architecture # openapi # kotlin Comments Add Comment 12 min read Agentic AI vs Generative AI : The Architectural Difference Developers Need to Understand Yeahia Sarker Yeahia Sarker Yeahia Sarker Follow Jan 8 Agentic AI vs Generative AI : The Architectural Difference Developers Need to Understand # agents # ai # architecture 1 reaction Comments 1 comment 3 min read Stop Redeploying Just to Change a Config Value Dmitry Tilyupo Dmitry Tilyupo Dmitry Tilyupo Follow Jan 8 Stop Redeploying Just to Change a Config Value # architecture # devops # node 1 reaction Comments Add Comment 3 min read IANA vs Offset-Based Time Zones: What Every Developer Should Know Władysław Kulik Władysław Kulik Władysław Kulik Follow Jan 7 IANA vs Offset-Based Time Zones: What Every Developer Should Know # architecture # programming # softwaredevelopment Comments Add Comment 6 min read Buttons Are Not Functions Jung Sungwoo Jung Sungwoo Jung Sungwoo Follow Jan 6 Buttons Are Not Functions # ai # frontend # architecture # agents Comments Add Comment 5 min read Why being smart isn't enough for agentic AI Benedict L Benedict L Benedict L Follow Jan 6 Why being smart isn't enough for agentic AI # agents # ai # architecture Comments Add Comment 2 min read Building a Fail-Closed Investment Risk Gate with Yuer DSL yuer yuer yuer Follow Jan 6 Building a Fail-Closed Investment Risk Gate with Yuer DSL # architecture # security # testing Comments Add Comment 3 min read Small Business Server Sizing Guide: CPU, RAM, SSDs Mian Zaheer Mian Zaheer Mian Zaheer Follow Jan 8 Small Business Server Sizing Guide: CPU, RAM, SSDs # architecture # performance # resources Comments Add Comment 5 min read Building AI Agents: Concepts & Architecture Malawige Inusha Thathsara Gunasekara Malawige Inusha Thathsara Gunasekara Malawige Inusha Thathsara Gunasekara Follow Jan 7 Building AI Agents: Concepts & Architecture # ai # automation # architecture Comments Add Comment 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Beginners Follow Hide "A journey of a thousand miles begins with a single step." -Chinese Proverb Create Post submission guidelines UPDATED AUGUST 2, 2019 This tag is dedicated to beginners to programming, development, networking, or to a particular language. Everything should be geared towards that! For Questions... Consider using this tag along with #help, if... You are new to a language, or to programming in general, You want an explanation with NO prerequisite knowledge required. You want insight from more experienced developers. Please do not use this tag if you are merely new to a tool, library, or framework. See also, #explainlikeimfive For Articles... Posts should be specifically geared towards true beginners (experience level 0-2 out of 10). 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Right menu How To Replace Over-Complicated NgRx Stores With Angular Signals — Without Losing Control kafeel ahmad kafeel ahmad kafeel ahmad Follow Jan 7 How To Replace Over-Complicated NgRx Stores With Angular Signals — Without Losing Control # webdev # javascript # beginners # angular Comments Add Comment 27 min read AI Automation vs AI Agents: What’s the Real Difference (Explained with Real-Life Examples) Viveka Sharma Viveka Sharma Viveka Sharma Follow Jan 8 AI Automation vs AI Agents: What’s the Real Difference (Explained with Real-Life Examples) # agents # tutorial # beginners # ai 1 reaction Comments 1 comment 3 min read How I Would Learn Web3 From Scratch Today (Without Wasting a Year) Emir Taner Emir Taner Emir Taner Follow Jan 12 How I Would Learn Web3 From Scratch Today (Without Wasting a Year) # web3 # beginners # devops # machinelearning 3 reactions Comments Add Comment 2 min read Why I rescheduled my AWS exam today Ali-Funk Ali-Funk Ali-Funk Follow Jan 7 Why I rescheduled my AWS exam today # aws # beginners # cloud # career Comments Add Comment 2 min read When Clients & Students Ask Is Web Development Dead? JAMAL AHMAD JAMAL AHMAD JAMAL AHMAD Follow Jan 6 When Clients & Students Ask Is Web Development Dead? # webdev # programming # beginners # ai Comments Add Comment 3 min read Building a Simple REST API with Express.js — The Right Way kafeel ahmad kafeel ahmad kafeel ahmad Follow Jan 7 Building a Simple REST API with Express.js — The Right Way # webdev # node # javascript # beginners Comments Add Comment 11 min read Reflexes, Cognition, and Thought Jennifer Davis Jennifer Davis Jennifer Davis Follow Jan 7 Reflexes, Cognition, and Thought # showdev # arduino # hardware # beginners Comments Add Comment 5 min read "It Works on My Machine" — এই ভূতের ওঝা যখন ডকার (Docker) Shuvro_baset Shuvro_baset Shuvro_baset Follow Jan 6 "It Works on My Machine" — এই ভূতের ওঝা যখন ডকার (Docker) # beginners # devops # docker Comments Add Comment 1 min read 🚀 Build a Real-Time Python Auction App (Beginner Guide) Mate Technologies Mate Technologies Mate Technologies Follow Jan 6 🚀 Build a Real-Time Python Auction App (Beginner Guide) # python # desktopapp # networking # beginners Comments Add Comment 3 min read What Really Happens When an LLM Chooses the Next Token🤯 Louis Liu Louis Liu Louis Liu Follow Jan 12 What Really Happens When an LLM Chooses the Next Token🤯 # programming # ai # beginners # javascript 2 reactions Comments Add Comment 2 min read Variables and Constants in Swift Gamya Gamya Gamya Follow Jan 6 Variables and Constants in Swift # beginners # swift # tutorial Comments Add Comment 2 min read The Two `if` Statements in Python Comprehensions (And Why Beginners Mix Them Up) Samuel Ochaba Samuel Ochaba Samuel Ochaba Follow Jan 6 The Two `if` Statements in Python Comprehensions (And Why Beginners Mix Them Up) # python # programming # beginners # tutorial Comments Add Comment 2 min read How we stopped shipping broken Angular code by making mistakes impossible kafeel ahmad kafeel ahmad kafeel ahmad Follow Jan 7 How we stopped shipping broken Angular code by making mistakes impossible # webdev # javascript # angular # beginners Comments Add Comment 12 min read Why Your 2026 Coding Routine is Failing (and the 90-Minute Fix That Actually Works) Code Practice Code Practice Code Practice Follow Jan 6 Why Your 2026 Coding Routine is Failing (and the 90-Minute Fix That Actually Works) # coding # webdev # beginners # programming 1 reaction Comments Add Comment 4 min read System Design Fundamentals: From Monolith to Microservices Chandrashekhar Kachawa Chandrashekhar Kachawa Chandrashekhar Kachawa Follow Jan 7 System Design Fundamentals: From Monolith to Microservices # programming # ai # webdev # beginners Comments Add Comment 4 min read Build Your Own Local AI Agent (Part 3): The Code Archaeologist 🔦 Harish Kotra (he/him) Harish Kotra (he/him) Harish Kotra (he/him) Follow Jan 7 Build Your Own Local AI Agent (Part 3): The Code Archaeologist 🔦 # programming # ai # beginners # opensource Comments Add Comment 1 min read 2026 New Year Challenge - 5 Projects United Hackathon yijun xu yijun xu yijun xu Follow Jan 7 2026 New Year Challenge - 5 Projects United Hackathon # programming # ai # beginners # llm Comments Add Comment 3 min read Conversion Funnels & the Banality of Success Nick Goldstein Nick Goldstein Nick Goldstein Follow Jan 7 Conversion Funnels & the Banality of Success # startup # beginners # productivity # marketing 2 reactions Comments Add Comment 3 min read How to Evaluate ML Models Step by Step likhitha manikonda likhitha manikonda likhitha manikonda Follow Jan 6 How to Evaluate ML Models Step by Step # ai # machinelearning # beginners # programming Comments Add Comment 5 min read Elixir - A brief introduction to the language behind WhatsApp, Nubank, Brex, and so many others! Lucas Matheus Lucas Matheus Lucas Matheus Follow Jan 7 Elixir - A brief introduction to the language behind WhatsApp, Nubank, Brex, and so many others! # beginners # programming # startup # tutorial 1 reaction Comments Add Comment 6 min read REST API and Common HTTP Methods Manikanta Yarramsetti Manikanta Yarramsetti Manikanta Yarramsetti Follow Jan 11 REST API and Common HTTP Methods # api # beginners # tutorial # webdev 1 reaction Comments Add Comment 2 min read Scrapy Authentication & Login Forms: Scrape Behind the Login Wall Muhammad Ikramullah Khan Muhammad Ikramullah Khan Muhammad Ikramullah Khan Follow Jan 7 Scrapy Authentication & Login Forms: Scrape Behind the Login Wall # programming # python # beginners # webdev Comments Add Comment 7 min read Scrapy Error Handling & Retry Logic: When Things Go Wrong Muhammad Ikramullah Khan Muhammad Ikramullah Khan Muhammad Ikramullah Khan Follow Jan 5 Scrapy Error Handling & Retry Logic: When Things Go Wrong # webdev # programming # productivity # beginners Comments Add Comment 7 min read Introduction: Analyzing randomness with AI nichebrai nichebrai nichebrai Follow Jan 11 Introduction: Analyzing randomness with AI # python # data # beginners Comments Add Comment 1 min read USE NEW KEYWORD IN METHOD FOR OBJECT CREATION AND PUTTING VALUE IN IT(SPRINGBOOT) Er. Bhupendra Er. Bhupendra Er. Bhupendra Follow Jan 7 USE NEW KEYWORD IN METHOD FOR OBJECT CREATION AND PUTTING VALUE IN IT(SPRINGBOOT) # beginners # java # springboot Comments Add Comment 1 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. 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https://dev.to/myip_casa_6da283ec3f32667 | myip casa - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions myip casa 404 bio not found Joined Joined on Dec 27, 2025 More info about @myip_casa_6da283ec3f32667 Badges Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close Post 1 post published Comment 0 comments written Tag 0 tags followed How to Quickly Diagnose Network Issues Using Browser-Based Tools myip casa myip casa myip casa Follow Dec 27 '25 How to Quickly Diagnose Network Issues Using Browser-Based Tools # security # webdev # privacy # networking Comments Add Comment 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account Forem Close Follow User actions Abe Wheeler Founder sunpeak.ai, Trigo (YC, acq). Built AI adtech at Amazon. Ship embedded ChatGPT Apps (MCP Apps) quickly with sunpeak ☀️🏔️ https://github.com/Sunpeak-AI/sunpeak ⭐️ -> ❤️ Location Austin, TX, USA Joined Joined on Dec 5, 2025 Personal website https://github.com/Sunpeak-AI/sunpeak Education USC Work Founder More info about @abewheeler Badges 2 Week Community Wellness Streak Keep the community conversation going! Post at least 2 comments for 2 straight weeks and unlock the 4 Week Badge. Got it Close 1 Week Community Wellness Streak For actively engaging with the community by posting at least 2 comments in a single week. Got it Close Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close Currently learning MCP Apps & ChatGPT Apps Currently hacking on https://github.com/Sunpeak-AI/sunpeak Post 6 posts published Comment 14 comments written Tag 0 tags followed MCP Needs a Browser Abe Wheeler Abe Wheeler Abe Wheeler Follow Jan 5 MCP Needs a Browser # mcp # webdev # ai # react 2 reactions Comments Add Comment 3 min read Want to connect with Abe Wheeler? Create an account to connect with Abe Wheeler. You can also sign in below to proceed if you already have an account. Create Account Already have an account? Sign in Introducing the Sunpeak Resource Repository Abe Wheeler Abe Wheeler Abe Wheeler Follow Dec 23 '25 Introducing the Sunpeak Resource Repository # mcp # webdev # ai # react 1 reaction Comments Add Comment 1 min read Ship a ChatGPT App in 2 commands Abe Wheeler Abe Wheeler Abe Wheeler Follow Dec 17 '25 Ship a ChatGPT App in 2 commands # mcp # webdev # ai # react 1 reaction Comments 1 comment 1 min read sunpeak: ChatGPT App Framework Abe Wheeler Abe Wheeler Abe Wheeler Follow Dec 11 '25 sunpeak: ChatGPT App Framework # showdev # mcp # githunt # news 1 reaction Comments Add Comment 1 min read ChatGPT App Display Mode Reference Abe Wheeler Abe Wheeler Abe Wheeler Follow Dec 10 '25 ChatGPT App Display Mode Reference # webdev # ai # mcp # chatgpt 2 reactions Comments Add Comment 3 min read How to build a ChatGPT App (MCP Apps) Abe Wheeler Abe Wheeler Abe Wheeler Follow Dec 5 '25 How to build a ChatGPT App (MCP Apps) # webdev # mcp # chatgpt # ai 2 reactions Comments Add Comment 3 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV Forem — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. 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https://dev.to/hrdyjan1 | hrdyjan1 - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions hrdyjan1 Vegetarian with long feet, who is in love with Marie and React. TL; DR Marie = Girlfriend React = JavaScript Library Location The Czech Republic Joined Joined on Sep 4, 2019 Personal website http://janhrdy.net github website Education Czech Technical University Work Bachelor at Prague, Front End developer More info about @hrdyjan1 Badges Six Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least six years. Got it Close Five Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least five years. Got it Close Four Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least four years. Got it Close Three Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least three years. Got it Close Two Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least two years. Got it Close One Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least one year. Got it Close Skills/Languages React Post 0 posts published Comment 1 comment written Tag 2 tags followed Want to connect with hrdyjan1? Create an account to connect with hrdyjan1. You can also sign in below to proceed if you already have an account. Create Account Already have an account? Sign in loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://www.dev.to/free-postgres-database-tier | The Best Free Postgres Tier - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close The Best Free Postgres Tier This is an overview of the Free Postgres Tier Upgrade deal within the DEV++ Membership . DEV++ is a membership deal, currently priced at $8/month, which aggregates pre-negotiated deals with a variety of providers to help individual developers like yourself save on key services for side projects, education, career opportunities, and more. We want to help ensure that you don't get nickel-and-dimed into spending out of pocket on your career. A lot of the time, free tiers are capped to prevent abuse, which is understandable, but it still sucks. We have negotiated a 4x upgrade on the Neon Postgres Database Free Tier as part of the DEV++ membership. Neon is a really impressive serverless PostgreSQL offering to start. It has auto-scaling, branching, pgvector integrations, and more—pretty much everything you want from fully-managed Postgres. The free tier, as is, helps you get going with 0.5GB of storage and ten branches, but the DEV++ offering really enhances it. Free Postgres via DEV++ 2GB of storage 10 free branches 15% discount on the paid plan, if you need it We charge $8/month for DEV++, but we aggregate services and value that make it a clear net positive if you take advantage of the deals. We encourage you to check out the offerings and see if it's right for you. Check out DEV++ Happy coding! 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/mobtone/help-me-and-other-developers-discover-how-to-create-more-efficient-automated-testing-environments-kjm | Help me, and other developers, discover how to create more efficient automated testing environments - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse mobtone Posted on Dec 22, 2025 Help me, and other developers, discover how to create more efficient automated testing environments # tooling # testing # devops # cicd Hi everyone! I'm currently writing my thesis on automated testing environment setup using static code analysis. I'm investigating hos much time developers/engineers spend on broken pipelines and environment configuration. I'm looking for input to understand if Configuration Drift in CI pipelines is a real pain point or not. I would really appreciate it if you could answer 4 survey questions (it takes maximum 1 minute), I didn't get a lot of response on this so far, so I'm eternally grateful for any participants. Your responses are anonymous and will help me map the need for smarter tooling, and hopefully also create one. Please note: While the survey uses Azure examples due to my thesis focus, the questions are applicable to all cloud platforms (AWS, GCP, etc). Google Forms link Thank you so much for your time and help! Top comments (0) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse mobtone Follow Joined Nov 6, 2024 Trending on DEV Community Hot I Didn’t “Become” a Senior Developer. I Accumulated Damage. # programming # ai # career # discuss Why “AI tools” fail: no workflow, no outcome # webdev # ai # beginners # devops If a problem can be solved without AI, does AI actually make it better? # ai # architecture # discuss 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. 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https://dev.to/page/security | Reporting Vulnerabilities to dev.to - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Reporting Vulnerabilities to dev.to Important Update: Changes to Our Bug Bounty Program We regret to announce we will be suspending our bug bounty reward program effective immediately. Due to time constraints in managing this program ourselves, we are not in a position to keep the program in-house. We are exploring other options, but do not have a timeline for a re-launch. While we are no longer able to offer monetary rewards at this time, we still highly value the security community's input and encourage you to continue reporting any vulnerabilities you may discover. Please send your findings to security@dev.to , and we will diligently investigate all reports. We remain committed to acknowledging significant contributions through our security hall of fame. We hope to launch a new reward program in the future. Your understanding and continued support in maintaining the security of our systems are deeply appreciated. Security Guidelines and Etiquette Please read and follow these guidelines prior to sending in any reports. 1. Do not test vulnerabilities in public. We ask that you do not attempt any vulnerabilities, rate-limiting tests, exploits, or any other security/bug-related findings if it will impact another community member. This means you should not leave comments on someone else’s post, send them messages via Connect, or otherwise, impact their experience on the platform. Note that we are open source and have documentation available if you're interested in setting up a dev environment for the purposes of testing. 2. Do not report similar issues or variations of the same issue in different reports. Please report any similar issues in a single report. It's better for both parties to have this information in one place where we can evaluate it all together. Please note any and all areas where your vulnerability might be relevant. You will not be penalized or receive a lower reward for streamlining your report in one place vs. spreading it across different areas. 3. The following domains are not eligible for our bounty program as they are hosted by or built on external services: jobs.dev.to (Recruitee) status.dev.to (Atlassian) shop.dev.to (Shopify) docs.dev.to (Netlify) storybook.dev.to (Netlify) We've listed the service provider of each of these domains so that you might contact them if you wish to report the vulnerability you found. 4. DoS (Denial of Service) vulnerabilities should not be tested for more than a span of 5 minutes. Be courteous and reasonable when testing any endpoints on dev.to as this may interfere with our monitoring. If we discover that you are testing DoS disruptively for prolonged periods of time, we may restrict your award, block your IP address, or remove your eligibility to participate in the program. 5. Please be patient with us after sending in your report. We’d appreciate it if you avoid messaging us to ask about the status of your report. Our team will get back to you only if your contribution is significant enough to be included in our hall of fame. Hall of Fame Thanks to those who have helped us by finding, fixing, and disclosing security issues safely: Aman Mahendra Muhammad Muhaddis Sajibe Kanti Sahil Mehra Prial Islam Pritesh Mistry Jerbi Nessim Vis Patel Mohammad Abdullah Ismail Hossain Antony Garand Guilherme Scombatti Ahsan Khan Shintaro Kobori Footstep Security Chakradhar Chiru Mustafa Khan Benoit Côté-Jodoin Rahul PS Kaushik Roy Kishan Kumar Gids Goldberg Zee Shan Md. 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https://dev.to/mobtone | mobtone - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Follow User actions mobtone 404 bio not found Joined Joined on Nov 6, 2024 github website More info about @mobtone Badges Writing Debut Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge. Got it Close One Year Club This badge celebrates the longevity of those who have been a registered member of the DEV Community for at least one year. Got it Close Post 1 post published Comment 0 comments written Tag 6 tags followed Help me, and other developers, discover how to create more efficient automated testing environments mobtone mobtone mobtone Follow Dec 22 '25 Help me, and other developers, discover how to create more efficient automated testing environments # tooling # testing # devops # cicd Comments Add Comment 1 min read loading... 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
https://dev.to/codemouse92/updated-opensource-tag-guidelines-55m5#what-changed | Updated #opensource Tag Guidelines - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. DUMB DEV Community Follow Memes and software development shitposting Design Community Follow Web design, graphic design and everything in-between Security Forem Follow Your central hub for all things security. From ethical hacking and CTFs to GRC and career development, for beginners and pros alike Golf Forem Follow A community of golfers and golfing enthusiasts Crypto Forem Follow A collaborative community for all things Crypto—from Bitcoin to protocol development and DeFi to NFTs and market analysis. Parenting Follow A place for parents to the share the joys, challenges, and wisdom that come from raising kids. We're here for them and for each other. Forem Core Follow Discussing the core forem open source software project — features, bugs, performance, self-hosting. Maker Forem Follow A community for makers, hobbyists, and professionals to discuss Arduino, Raspberry Pi, 3D printing, and much more. HMPL.js Forem Follow For developers using HMPL.js to build fast, lightweight web apps. A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Jason C. McDonald Posted on Jul 17, 2019 • Edited on Apr 8, 2020 Updated #opensource Tag Guidelines # opensource # meta Updated 8 April 2020 The #opensource tag is awesome, but it's also been lacking a lot of focus. Is it for promoting projects? Talking about open source? Posting lists of the top 20 open source Javascript modules? It's hard to tell. In a way, because the lion's share of our technologies, libraries, tools, and projects are open source, nearly everything qualified for this tag before. It was becoming our site's junk drawer as it were - lots of nifty and useful stuff, but no semblance of organization to any of it. Since DEV.to rolled out Listings , I'm taking the opportunity to narrow the tag focus a bit. The goal is to give the #opensource tag clear topic boundaries, so Following it doesn't lead to a bunch of irrelevant posts leaking into your feed. New Guidelines I've updated the tag guidelines, but I wanted to lay out the changes here. Posts promoting a single project should go on Listings , or on #showdev or #news if it qualifies. Posts using or mentioning one or more open source projects should go on the appropriate tags for the relevant languages and technologies. This includes tutorials, "round ups", guides, comparisons, reviews, and the like. These typically land in #opensource, and are the main reason for the tag clutter. Announcements relating to your awesome project, including new features, releases, versions, and the like, should go on #news or Listings , or should be expanded out into a proper article (tutorial, maybe?) and posted on the appropriate technology tags. Open source contributor requests should go on #contributorswanted or Listings . If you're just bursting with pride at something you built, use the #showdev tag instead. "Roundups" and other lists of cool open source projects belong on #githunt . What Changed? All this mainly means the #opensource tag is no longer valid merely if the project(s) being discusses happen to be open source! To put that another way, here's a few theoretical topics which would have been #opensource material before, but aren't now. "Top 10 Open Source Python Data Modules" ( #python ) "My Awesome Data Visualizer in Go" ( #go , #showdev ) "Looking for contributors to Supercoolproject" (Listings or #contributorswanted ) "What I did on my Perl project this week" ( #perl , #devjournal , possibly #showdev ) "Installing Epictool on Ubuntu" ( #ubuntu ) "5 Open Source Alternatives to AWS" ( #cloud ) What SHOULD It Be? Articles in this tag should be about at least one of these three broad topics: Organizing, managing, running, contributing to, or working in an Open Source project. Open Source philosophy, licensing, and/or practical and legal topics thereof. Advocacy and adoption of Open Source philosophy . Aliases #foss and #freesoftware have been aliased over to #opensource (thanks @michaeltharrington !) and the tag info updated to account for that. I know that Free Software is culturally distinct from Open Source, but as the former is always compliant to a subset of the latter, having one tag for all just makes sense. Guideline Enforcement I won't be applying this to any posts before July 17th 2019 (retroactive guidelines just aren't fair). If the #opensource tag is used incorrectly in new posts, I'll remove it and provide a friendly reminder, along with suggestions on better tags to use. I know it'll take a while to get used to the updated rules, so don't worry if you miss it a few dozen times. Top comments (8) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand Ben Halpern Ben Halpern Ben Halpern Follow A Canadian software developer who thinks he’s funny. Email ben@forem.com Location NY Education Mount Allison University Pronouns He/him Work Co-founder at Forem Joined Dec 27, 2015 • Jul 17 '19 Dropdown menu Copy link Hide Well thought out Jason. I'll be following along. We'll have some more easily accessible tag guidelines adjacent to the editor coming soon so folks can understand the instructions without being caught off guard by doing it wrong. As more folks define their guidelines, my biggest worry is what a lot of forums become when mods are overbearing. So I'm glad this is well thought out and well described. @michaeltharrington let's Jason well with this and we'll coordinate on functionality that needs to ship. Like comment: Like comment: 5 likes Like Comment button Reply Collapse Expand Michael Tharrington Michael Tharrington Michael Tharrington Follow I'm a friendly, non-dev, cisgender guy from NC who enjoys playing music/making noise, hiking, eating veggies, and hanging out with my best friend/wife + our 3 kitties + 1 greyhound. Email mct3545@gmail.com Location North Carolina Education BFA in Creative Writing Pronouns he/him Work Senior Community Manager at DEV Joined Oct 24, 2017 • Jul 17 '19 Dropdown menu Copy link Hide Agreed! This is very well thought out. I think this tag will definitely benefit from more focus. Jason, feel free to hit me up if you need a hand with anything. I'm happy to help! Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Jul 17 '19 Dropdown menu Copy link Hide Thanks, Michael and Ben! Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand William Antonelli William Antonelli William Antonelli Follow Joined Mar 7, 2019 • Jul 18 '19 Dropdown menu Copy link Hide This is a list of what not to use the tag for. Can you give some examples of what we would use it for? I think that would be easier to understand. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Jul 18 '19 Dropdown menu Copy link Hide No problem. From the tag info: To keep this tag clean and meaningful, please ensure your post fits into at least one of the following categories: * Organizing, managing, running, or working in an Open Source project. * Open Source philosophy, licensing, and/or practical and legal topics thereof. * Advocacy and adoption of Open Source technology. I'll add that to the post. Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Frederik 👨💻➡️🌐 Creemers Frederik 👨💻➡️🌐 Creemers Frederik 👨💻➡️🌐 Creemers Follow I'm never sure what to put in a bio. If there's anything you want to know, don't be afraid to ask! Email frederikcreemers@gmail.com Location Maastricht, the Netherlands Education Knowledge Engineering & Data Science at Maastricht University Pronouns he/him Work Developer at TalkJS Joined Mar 22, 2017 • Jul 17 '19 Dropdown menu Copy link Hide I think the #githunt tag is also relevant here. Looking at some of its recent posts, it could also use some enforcement of its guidelines. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Jason C. McDonald Jason C. McDonald Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Email codemouse92@outlook.com Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 • Aug 3 '19 • Edited on Aug 3 • Edited Dropdown menu Copy link Hide Y'know, they're always looking for more tag moderators, and I agree that #githunt needs some love. Maybe that'd be something you'd be good at? (Contact yo@dev.to if you're interested.) Like comment: Like comment: 1 like Like Comment button Reply Some comments may only be visible to logged-in visitors. Sign in to view all comments. Some comments have been hidden by the post's author - find out more Code of Conduct • Report abuse Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink . Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Jason C. McDonald Follow Author. Speaker. Time Lord. (Views are my own) Location Time Vortex Pronouns he/him Work Author of "Dead Simple Python" (No Starch Press) Joined Jan 31, 2017 More from Jason C. 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Skip the API. Then, easily revalidate cached data and update your UI in one network roundtrip. Advanced Routing & Nested Layouts Create routes using the file system, including support for more advanced routing patterns and UI layouts. CSS Support Style your application with your favorite tools, including support for CSS Modules, Tailwind CSS, and popular community libraries. Route Handlers Build API endpoints to securely connect with third-party services for handling auth or listening for webhooks. Middleware Take control of the incoming request. Use code to define routing and access rules for authentication, experimentation, and internationalization. Client and Server Rendering Flexible rendering and caching options, including Incremental Static Regeneration (ISR), on a per-page level. React Server Components Add components without sending additional client-side JavaScript. Built on the latest React features. Data Fetching Make your React component async and await your data. Next.js supports both server and client data fetching. Server Actions Run server code by calling a function. Skip the API. Then, easily revalidate cached data and update your UI in one network roundtrip. Advanced Routing & Nested Layouts Create routes using the file system, including support for more advanced routing patterns and UI layouts. CSS Support Style your application with your favorite tools, including support for CSS Modules, Tailwind CSS, and popular community libraries. Route Handlers Build API endpoints to securely connect with third-party services for handling auth or listening for webhooks. Middleware Take control of the incoming request. Use code to define routing and access rules for authentication, experimentation, and internationalization. Client and Server Rendering Flexible rendering and caching options, including Incremental Static Regeneration (ISR), on a per-page level. Next.js 16 The power of full-stack to the frontend. Read the release notes. 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Dynamic HTML Streaming Instantly stream UI from the server, integrated with the App Router and React Suspense. Next.js 16 The power of full-stack to the frontend. Read the release notes. Built-in Optimizations Automatic Image, Font, and Script Optimizations for improved UX and Core Web Vitals. Dynamic HTML Streaming Instantly stream UI from the server, integrated with the App Router and React Suspense. | 2026-01-13T08:49:12 |
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https://dev.to/hoverbaum/how-to-add-code-highlighting-to-your-devto-posts-2lp6#main-content | How to add code highlighting to your Dev.to posts. - DEV Community Forem Feed Follow new Subforems to improve your feed DEV Community Follow A space to discuss and keep up software development and manage your software career Future Follow News and discussion of science and technology such as AI, VR, cryptocurrency, quantum computing, and more. Open Forem Follow A general discussion space for the Forem community. If it doesn't have a home elsewhere, it belongs here Gamers Forem Follow An inclusive community for gaming enthusiasts Music Forem Follow From composing and gigging to gear, hot music takes, and everything in between. Vibe Coding Forem Follow Discussing AI software development, and showing off what we're building. Popcorn Movies and TV Follow Movie and TV enthusiasm, criticism and everything in-between. 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A space to share projects, ask questions, and discuss server-driven templating Dropdown menu Dropdown menu Skip to content Navigation menu Search Powered by Algolia Search Log in Create account DEV Community Close Add reaction Like Unicorn Exploding Head Raised Hands Fire Jump to Comments Save Boost More... Copy link Copy link Copied to Clipboard Share to X Share to LinkedIn Share to Facebook Share to Mastodon Share Post via... Report Abuse Hendrik Posted on Sep 10, 2018 How to add code highlighting to your Dev.to posts. # explainlikeimfive # postwriting # markdown # codeception The simple truth of the matter is that: const turorialFunction = ( name ) => { console . log ( `Hello ${ name } ` ) } Enter fullscreen mode Exit fullscreen mode does look way nicer than: const turorialFunction = (name) => { console.log(`Hello ${name}`) } Enter fullscreen mode Exit fullscreen mode when writing a post here on Dev.to. How to do it Dev.tos posts are based on Markdown. Within Markdown we can use identation or so called Code Blocks to specify sections of code. The later ones are indicated using ``` . Read more about this in this cheatsheet . Using the three ` variant we can also specify a language for the code block. A lot of tooling build on top of Markdown utilized this characteristic to implement richer features. But the simplest of them is code highlighting. The above nicely colored code snippet is achieved by starting the code block with ```javascript . The full example for the above would be: ```javascript const turorialFunction = (name) => { console.log(`Hello ${name}`) } ``` And if you are now wondering how the hell I got that to display: <pre> ```javascript const turorialFunction = (name) => { console.log(`Hello ${name}`) } ``` </pre> and the inline code is: <code>&#96;&#96;&#96;</code> . Here is where my explanations stop and your colorful posts start. The list of supported languages is impressive, though not all encompassing (check comments). Top comments (40) Subscribe Personal Trusted User Create template Templates let you quickly answer FAQs or store snippets for re-use. Submit Preview Dismiss Collapse Expand Maxime Maxime Maxime Follow Gradient developer and accessibility advocate 🥑 Location Stockholm, Sweden Education Bachelor of arts 🤦♂️ Pronouns they/them Work UI engineer at Rebtel Joined Aug 3, 2018 • Jun 7 '19 • Edited on Jun 7 • Edited Dropdown menu Copy link Hide Does anyone know if dev.to supports highlighting lines of code or combining the diff highlighter with a language highlighter? My use case is to draw attention to new or update lines of code when I write tutorials. Something like this: I know we can use diff but I can't find a way to combine that with code highlighting: function hello() { - alert("Hello!"); + alert("Hi!"); } Enter fullscreen mode Exit fullscreen mode Like comment: Like comment: 15 likes Like Comment button Reply Collapse Expand Lanae BK Lanae BK Lanae BK Follow I fix things by turning them off and on again, then try to figure out why they broke. Email lanae.bk@gmail.com Location Mystic, CT Education Eastern Connecticut State University Work Architecture Advisor Joined Apr 30, 2019 • Mar 25 '20 Dropdown menu Copy link Hide I am also trying to figure out how to do this - did you ever find an answer? Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Maxime Maxime Maxime Follow Gradient developer and accessibility advocate 🥑 Location Stockholm, Sweden Education Bachelor of arts 🤦♂️ Pronouns they/them Work UI engineer at Rebtel Joined Aug 3, 2018 • Mar 27 '20 Dropdown menu Copy link Hide I didn't ☹️ Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand rhymes rhymes rhymes Follow Such software as dreams are made on. I mostly rant about performance, unnecessary complexity, privacy and data collection. Joined Feb 2, 2017 • Sep 10 '18 Dropdown menu Copy link Hide I did a quick search in the code: dev.to uses the Redcarpet Ruby library to parse Markdown with rouge which does the highlighting part. The list of lexers is impressive: Dart: void main ( ) { print ( 'Hello, World!' ); } Enter fullscreen mode Exit fullscreen mode Julia: println ( "hello world" ) Enter fullscreen mode Exit fullscreen mode No Cobol though :D You can find the code in devto here and here and here Like comment: Like comment: 7 likes Like Comment button Reply Collapse Expand Kishor Jena Kishor Jena Kishor Jena Follow Joined Jun 12, 2022 • Jun 12 '22 Dropdown menu Copy link Hide Can you tell me the name of the theme for JS. I hope this available in vscode. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand Max Cerrina Max Cerrina Max Cerrina Follow Email mrcerrina@gmail.com Joined Aug 23, 2017 • Sep 11 '18 Dropdown menu Copy link Hide Also shoutout for the "how I got this to display" part because I sure WAS wondering how you got the literal ```javascript to display Like comment: Like comment: 6 likes Like Comment button Reply Collapse Expand rhymes rhymes rhymes Follow Such software as dreams are made on. I mostly rant about performance, unnecessary complexity, privacy and data collection. Joined Feb 2, 2017 • Sep 11 '18 Dropdown menu Copy link Hide yeah, that's great, I would have used screenshots :D Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand Hendrik Hendrik Hendrik Follow JavaScript enthusiast and developer for fun 👨💻 Location Hamburg Joined Jul 10, 2018 • Sep 11 '18 Dropdown menu Copy link Hide Glad that part is helping 😁 Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Hendrik Hendrik Hendrik Follow JavaScript enthusiast and developer for fun 👨💻 Location Hamburg Joined Jul 10, 2018 • Sep 10 '18 Dropdown menu Copy link Hide Ahh interesting aspect. I will make sure to mention that above. Haven't looked into the fundamentals of dev.to but I guess they are using a code highlighter somewhere and are only including a limited amount of plugins, as in language support, to keep bundle size down. Maybe a good candidate for improvement 👍 Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Stevie G Stevie G Stevie G Follow I'm a passionate distinguished Computer Engineer Location NSW, Australia Joined May 17, 2019 • May 17 '19 Dropdown menu Copy link Hide Thanks mate! Exactly what I was looking for! Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand Anand Kumar Anand Kumar Anand Kumar Follow Experienced, Creative, ambitious and enterprising software engineer. I primarily focus on modern JavaScript, more specifically React, its ecosystem and Node.js. Location India Work Manager at Publicis Sapient Joined Jan 3, 2019 • May 5 '19 Dropdown menu Copy link Hide Hi @hendrik , Is there a way that I can change the background colour of the code block from black to white? Like theming or something? Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand Hendrik Hendrik Hendrik Follow JavaScript enthusiast and developer for fun 👨💻 Location Hamburg Joined Jul 10, 2018 • May 5 '19 Dropdown menu Copy link Hide I don't think there is. The code highlight is basically a markdown feature and how it looks is defined by dev.to globally. But providing a theme to use for code blocks could be a cool feature for the Frontmatter, I agree. Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand Martinez Martinez Martinez Follow I building web apps with React / Next.js and Tailwind CSS and more. I'm a JavaScript enthusiast and I love doing design and UI. Joined Jan 31, 2023 • Feb 5 '23 Dropdown menu Copy link Hide You can try change the language function CSS { console.log(`this is a example whit the flag css`) } Enter fullscreen mode Exit fullscreen mode function Typescript { console . log ( `this is a example whit the flag typescript` ) } Enter fullscreen mode Exit fullscreen mode I say this in case someone thinks that javascript is the only language that works. Like comment: Like comment: 1 like Like Comment button Reply Collapse Expand erikest erikest erikest Follow I work with a full plate on a full stack, sometimes chewing more than I intended in one bite. Location Chico Work That Dev at Home Joined Apr 4, 2019 • Apr 9 '19 Dropdown menu Copy link Hide shell and console don't seem to add much flavor. I was hoping at least for some #comment coloring... Like comment: Like comment: 3 likes Like Comment button Reply Collapse Expand Miguel Ben Miguel Ben Miguel Ben Follow Computer Science & Coding Bootcamp Grad. Location Manhattan, NY Joined Aug 2, 2018 • Aug 2 '20 Dropdown menu Copy link Hide I remember someone made their hyperlink or a tag on the blog to be pink ish with yellow background. I've been trying to figure it out. Does anyone has idea how to do it? Like comment: Like comment: 2 likes Like Comment button Reply Collapse Expand Rakesh Reddy Peddamallu Rakesh Reddy Peddamallu Rakesh Reddy Peddamallu Follow I’m Rakesh from Juniper Networks, passionate about tech. Follow my blog for insights and tips from the tech world! Email rakeshreddypeddamallu05@gmail.com Location Bangalore Education RVCE Work Juniper Networks Joined Jun 25, 2023 • Aug 30 '23 Dropdown menu Copy link Hide console . log ( " hello " ) Enter fullscreen mode Exit fullscreen mode Like comment: Like comment: 1 like Like Comment button Reply View full discussion (40 comments) Code of Conduct • Report abuse Are you sure you want to hide this comment? 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Hide child comments as well Confirm For further actions, you may consider blocking this person and/or reporting abuse Hendrik Follow JavaScript enthusiast and developer for fun 👨💻 Location Hamburg Joined Jul 10, 2018 Trending on DEV Community Hot The First Week at a Startup Taught Me More Than I Expected # startup # beginners # career # learning Meme Monday # discuss # watercooler # jokes AI should not be in Code Editors # programming # ai # productivity # discuss 💎 DEV Diamond Sponsors Thank you to our Diamond Sponsors for supporting the DEV Community Google AI is the official AI Model and Platform Partner of DEV Neon is the official database partner of DEV Algolia is the official search partner of DEV DEV Community — A space to discuss and keep up software development and manage your software career Home DEV++ Podcasts Videos DEV Education Tracks DEV Challenges DEV Help Advertise on DEV DEV Showcase About Contact Free Postgres Database Software comparisons Forem Shop Code of Conduct Privacy Policy Terms of Use Built on Forem — the open source software that powers DEV and other inclusive communities. Made with love and Ruby on Rails . DEV Community © 2016 - 2026. We're a place where coders share, stay up-to-date and grow their careers. Log in Create account | 2026-01-13T08:49:12 |
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