Upload folder using huggingface_hub

.editorconfig

@@ -0,0 +1,24 @@
+# EditorConfig (https://editorconfig.org/)
+
+root = true
+
+[*]
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true
+
+[*.java]
+indent_style = space
+indent_size = 2
+
+[*.c]
+indent_style = space
+indent_size = 4
+
+[*.gradle]
+indent_style = space
+indent_size = 4
+
+[*.sh]
+indent_style = space
+indent_size = 4

.gitattributes

@@ -1,35 +1,10 @@
-*.7z filter=lfs diff=lfs merge=lfs -text
-*.arrow filter=lfs diff=lfs merge=lfs -text
-*.bin filter=lfs diff=lfs merge=lfs -text
-*.bz2 filter=lfs diff=lfs merge=lfs -text
-*.ckpt filter=lfs diff=lfs merge=lfs -text
-*.ftz filter=lfs diff=lfs merge=lfs -text
-*.gz filter=lfs diff=lfs merge=lfs -text
-*.h5 filter=lfs diff=lfs merge=lfs -text
-*.joblib filter=lfs diff=lfs merge=lfs -text
-*.lfs.* filter=lfs diff=lfs merge=lfs -text
-*.mlmodel filter=lfs diff=lfs merge=lfs -text
-*.model filter=lfs diff=lfs merge=lfs -text
-*.msgpack filter=lfs diff=lfs merge=lfs -text
-*.npy filter=lfs diff=lfs merge=lfs -text
-*.npz filter=lfs diff=lfs merge=lfs -text
-*.onnx filter=lfs diff=lfs merge=lfs -text
-*.ot filter=lfs diff=lfs merge=lfs -text
-*.parquet filter=lfs diff=lfs merge=lfs -text
-*.pb filter=lfs diff=lfs merge=lfs -text
-*.pickle filter=lfs diff=lfs merge=lfs -text
-*.pkl filter=lfs diff=lfs merge=lfs -text
-*.pt filter=lfs diff=lfs merge=lfs -text
-*.pth filter=lfs diff=lfs merge=lfs -text
-*.rar filter=lfs diff=lfs merge=lfs -text
-*.safetensors filter=lfs diff=lfs merge=lfs -text
-saved_model/**/* filter=lfs diff=lfs merge=lfs -text
-*.tar.* filter=lfs diff=lfs merge=lfs -text
-*.tar filter=lfs diff=lfs merge=lfs -text
-*.tflite filter=lfs diff=lfs merge=lfs -text
-*.tgz filter=lfs diff=lfs merge=lfs -text
-*.wasm filter=lfs diff=lfs merge=lfs -text
-*.xz filter=lfs diff=lfs merge=lfs -text
-*.zip filter=lfs diff=lfs merge=lfs -text
-*.zst filter=lfs diff=lfs merge=lfs -text
-*tfevents* filter=lfs diff=lfs merge=lfs -text
+*.ai binary
+fastlane/metadata/android/en-US/images/featureGraphic.png filter=lfs diff=lfs merge=lfs -text
+fastlane/metadata/android/en-US/images/phoneScreenshots/1.png filter=lfs diff=lfs merge=lfs -text
+fastlane/metadata/android/en-US/images/phoneScreenshots/2.png filter=lfs diff=lfs merge=lfs -text
+fastlane/metadata/android/en-US/images/phoneScreenshots/3.png filter=lfs diff=lfs merge=lfs -text
+fastlane/metadata/android/en-US/images/phoneScreenshots/4.png filter=lfs diff=lfs merge=lfs -text
+fastlane/metadata/android/en-US/images/phoneScreenshots/5.png filter=lfs diff=lfs merge=lfs -text
+src/main/assets/fonts/Roboto-Light.ttf filter=lfs diff=lfs merge=lfs -text
+src/main/res/drawable/background_hd.jpg filter=lfs diff=lfs merge=lfs -text
+src/main/res/drawable/intro1.png filter=lfs diff=lfs merge=lfs -text

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+ko_fi: adbenitez
+liberapay: adbenitez
+custom: "https://arcanechat.me/#contribute"

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,29 @@
+---
+name: Bug report
+about: Report something that isn't working.
+title: ''
+assignees: ''
+labels: bug
+---
+
+<!--
+Please fill out as much of this form as you can (leaving out stuff that is not applicable is ok).
+-->
+
+- Android version:
+- Device:
+- ArcaneChat version:
+- Expected behavior:
+- Actual behavior:
+- Steps to reproduce the problem:
+- Screenshots:
+- Logs:
+
+<!--
+Debug logs can be copied from within the app with
+Settings menu -> Advanced -> View log
+
+Logs may contain private data 
+which shall be removed or anonymised prior to posting.
+-->
+

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,15 @@
+---
+name: Feature request
+about: Request a new feature.
+title: ''
+assignees: ''
+labels: enhancement
+---
+
+<!--
+Please fill out as much of this form as you can (leaving out stuff that is not applicable is ok).
+-->
+
+### Describe your feature:
+
+### Why do you think it is useful:

.github/ISSUE_TEMPLATE/other.md

@@ -0,0 +1,6 @@
+---
+name: Other
+about: Start with a new blank issue.
+title: ''
+assignees: ''
+---

.github/copilot-instructions.md

@@ -0,0 +1,175 @@
+# GitHub Copilot Instructions for ArcaneChat Android
+
+## Project Overview
+
+ArcaneChat is a Delta Chat Android client built on top of the official Delta Chat client with several improvements. It is a messenger app that uses email infrastructure for secure communication.
+
+**Technology Stack:**
+- **Language:** Java (Java 8 compatibility)
+- **Build System:** Gradle with Android Gradle Plugin 8.11.1
+- **Min SDK:** 21 (Android 5.0)
+- **Target SDK:** 35 (Android 15)
+- **NDK Version:** 27.0.12077973
+- **Native Components:** Rust (deltachat-core-rust submodule)
+- **UI Framework:** Android SDK, Material Design Components
+- **Testing:** JUnit 4, Espresso, Mockito, PowerMock, AssertJ
+
+## Repository Structure
+
+- `src/main/` - Main application source code
+- `src/androidTest/` - Instrumented tests (UI tests, benchmarks)
+- `src/gplay/` - Google Play flavor-specific code
+- `src/foss/` - F-Droid/FOSS flavor-specific code
+- `jni/deltachat-core-rust/` - Native Rust core library (submodule)
+- `scripts/` - Build and helper scripts
+- `docs/` - Documentation
+- `fastlane/` - App store metadata and screenshots
+
+## Build Instructions
+
+### Prerequisites
+
+1. **Initialize submodules:**
+   ```bash
+   git submodule update --init --recursive
+   ```
+
+2. **Build native libraries:**
+   ```bash
+   scripts/ndk-make.sh
+   ```
+   Note: First run may take significant time as it builds for all architectures (armeabi-v7a, arm64-v8a, x86, x86_64)
+
+3. **Build APK:**
+   ```bash
+   ./gradlew assembleDebug
+   ```
+
+### Build Flavors
+
+- **gplay:** Google Play version with Firebase Cloud Messaging (applicationId: `com.github.arcanechat`)
+- **foss:** F-Droid version without proprietary services (applicationId: `chat.delta.lite`)
+
+### Build Outputs
+
+- Debug APKs: `build/outputs/apk/gplay/debug/` and `build/outputs/apk/fat/debug/`
+- Release APKs require signing configuration in `~/.gradle/gradle.properties`
+
+## Testing
+
+### Running Unit Tests
+
+```bash
+./gradlew test
+```
+
+### Running Instrumented Tests
+
+1. **Disable animations** on your device/emulator:
+   - Developer Options → Set "Window animation scale", "Transition animation scale", and "Animator duration scale" to 0x
+
+2. **Run tests:**
+   ```bash
+   ./gradlew connectedAndroidTest
+   ```
+
+### Online Tests
+
+Some tests require real email credentials. Configure in `~/.gradle/gradle.properties`:
+```properties
+TEST_ADDR=youraccount@yourdomain.org
+TEST_MAIL_PW=yourpassword
+```
+
+### UI Tests and Benchmarks
+
+- Located in `src/androidTest/java/com/b44t/messenger/`
+- Test categories: `uitests/online/`, `uitests/offline/`, `uibenchmarks/`
+- Run via Android Studio: Run → Edit Configurations → Android Instrumented Test
+
+## Coding Conventions
+
+### General Guidelines
+
+1. **Embrace existing style:** Match the coding style of the file you're editing
+2. **Minimize changes:** Don't refactor or rename in the same PR as bug fixes/features
+3. **Readable over paradigmatic:** Favor readability over strict Java patterns
+4. **Avoid premature optimization:** Keep things simple and on point
+5. **No excessive abstraction:** Avoid unnecessary factories, one-liner functions, or abstraction layers
+6. **Comments:** Only add comments if they match existing style or explain complex logic
+
+### Architecture
+
+- **UI/Model Separation:** Delta Chat Core (Rust) handles the model layer
+- **High-level interface:** Core provides data in UI-ready form; avoid additional transformations in UI layer
+- **Direct approach:** Prefer direct implementation over excessive class hierarchies
+
+### Key Principles
+
+- Work hard to avoid options and up-front choices
+- Avoid speaking about keys/encryption in primary UI
+- App must work offline and with poor network
+- Users don't read much text
+- Consistency matters
+- Primary UI should only show highly useful features
+
+## Common Development Tasks
+
+### Adding New Features
+
+1. Consider the UX philosophy (minimal options, offline-first, simplicity)
+2. Check if core library changes are needed before implementing in UI
+3. Match existing code style in modified files
+4. Add instrumented tests for UI changes when appropriate
+5. Update relevant documentation
+
+### Modifying Core Integration
+
+- Core library is in `jni/deltachat-core-rust/` submodule
+- Java bindings are in `src/main/java/com/b44t/messenger/Dc*.java`
+- JSON-RPC bindings in `chat.delta.rpc.*` package (generated via dcrpcgen)
+
+### Working with Translations
+
+- Translations managed via Transifex (not in repository)
+- English source strings: `res/values/strings.xml`
+- Don't mix string changes with refactoring
+
+### Debugging Native Code
+
+Decode crash symbols:
+```bash
+$ANDROID_NDK_ROOT/ndk-stack --sym obj/local/armeabi-v7a --dump crash.txt > decoded.txt
+```
+
+## WebXDC Support
+
+ArcaneChat has extended WebXDC support:
+- `window.webxdc.arcanechat` - Version detection
+- `sendToChat()` - Extra properties: `subject`, `html`, `type` (sticker/image/audio/video/file)
+- External link support in apps
+- `manifest.toml` - `orientation` field for landscape mode
+
+## Important Files
+
+- `build.gradle` - Main build configuration
+- `CONTRIBUTING.md` - Contribution guidelines
+- `BUILDING.md` - Detailed build setup
+- `RELEASE.md` - Release process
+- `proguard-rules.pro` - ProGuard configuration
+- `google-services.json` - Firebase configuration (gplay flavor)
+
+## Package Structure
+
+- `org.thoughtcrime.securesms.*` - Main UI components (legacy namespace from Signal)
+- `com.b44t.messenger.*` - Delta Chat core integration
+- `chat.delta.rpc.*` - JSON-RPC bindings (generated)
+
+## Notes for AI Assistants
+
+- This is a fork of Delta Chat Android with ArcaneChat-specific improvements
+- Maintain compatibility with Delta Chat core library
+- Test on both gplay and foss flavors when making changes
+- Native library must be rebuilt after core changes
+- ProGuard is enabled in both debug and release builds
+- Multi-dex is enabled due to app size

.github/mergeable.yml

@@ -0,0 +1,22 @@
+version: 2
+mergeable:
+  - when: pull_request.*
+    name: "Changelog check"
+    validate:
+      - do: or
+        validate:
+        - do: description
+          must_include:
+            regex: '#skip-changelog'
+        - do: and
+          validate:
+            - do: dependent
+              changed:
+                file: '**/*.java'
+                required: ['CHANGELOG.md']
+    fail:
+      - do: checks
+        status: 'action_required'
+        payload:
+          title: CHANGELOG.md might need an update
+          summary: "Please update CHANGELOG.md or add #skip-changelog to the description"

.github/workflows/artifacts.yml

@@ -0,0 +1,20 @@
+name: add artifact links to pull request
+on:
+  workflow_run:
+    workflows: ["Upload Preview APK"]
+    types: [completed]
+
+jobs:
+  artifacts-url-comments:
+    name: add artifact links to pull request
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    steps:
+      - name: add artifact links to pull request
+        uses: tonyhallett/artifacts-url-comments@v1.1.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          prefix: "**To test the changes in this pull request, install this apk:**"
+          format: "[📦 {name}]({url})"
+          addTo: pull

.github/workflows/preview-apk.yml

@@ -0,0 +1,57 @@
+name: Upload Preview APK
+
+on: pull_request
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  build:
+    name: Upload Preview APK
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          submodules: recursive
+      - name: Validate Fastlane Metadata
+        uses: ashutoshgngwr/validate-fastlane-supply-metadata@v2
+      - uses: Swatinem/rust-cache@v2
+        with:
+          working-directory: jni/deltachat-core-rust
+      - uses: actions/setup-java@v5
+        with:
+          java-version: 17
+          distribution: 'temurin'
+      - uses: android-actions/setup-android@v3
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+      - uses: nttld/setup-ndk@v1
+        id: setup-ndk
+        with:
+          ndk-version: r27
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/actions/wrapper-validation@v4
+
+      - name: Compile core
+        env:
+          ANDROID_NDK_ROOT: ${{ steps.setup-ndk.outputs.ndk-path }}
+        run: |
+          export PATH="${PATH}:${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin/"
+          scripts/install-toolchains.sh && scripts/ndk-make.sh armeabi-v7a
+
+      - name: Build APK
+        run: ./gradlew --no-daemon -PABI_FILTER=armeabi-v7a assembleFossDebug
+
+      - name: Upload APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-preview.apk
+          path: 'build/outputs/apk/foss/debug/*.apk'

.github/workflows/release.yml

@@ -0,0 +1,81 @@
+name: Upload Release APK
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    outputs:
+      match: ${{ steps.check-tag.outputs.match }}
+    steps:
+      - id: check-tag
+        run: |
+          if [[ "${{ github.event.ref }}" =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+.*$ ]]; then
+              echo ::set-output name=match::true
+          fi
+
+  build:
+    needs: check
+    if: needs.check.outputs.match == 'true'
+    name: Upload Release APK
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - uses: Swatinem/rust-cache@v2
+        with:
+          working-directory: jni/deltachat-core-rust
+      - uses: actions/setup-java@v3
+        with:
+          java-version: 17
+          distribution: 'temurin'
+      - uses: android-actions/setup-android@v3
+      - uses: nttld/setup-ndk@v1
+        id: setup-ndk
+        with:
+          ndk-version: r27
+
+      - name: Compile core
+        env:
+          ANDROID_NDK_ROOT: ${{ steps.setup-ndk.outputs.ndk-path }}
+        run: |
+          export PATH="${PATH}:${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin/:${ANDROID_NDK_ROOT}"
+          ./scripts/install-toolchains.sh && ./scripts/ndk-make.sh
+
+      - name: Build APK
+        run: |
+          mkdir -p ~/.gradle
+          echo -n ${{ secrets.KEYSTORE_FILE }} | base64 -d >> ~/keystore.jks
+          echo "DC_RELEASE_STORE_FILE=$HOME/keystore.jks" >> ~/.gradle/gradle.properties
+          echo "DC_RELEASE_STORE_PASSWORD=${{ secrets.KEYSTORE_PASSWORD }}" >> ~/.gradle/gradle.properties
+          echo "DC_RELEASE_KEY_ALIAS_FDROID=${{ secrets.ALIAS_FDROID }}" >> ~/.gradle/gradle.properties
+          echo "DC_RELEASE_KEY_ALIAS_GPLAY=${{ secrets.ALIAS_GPLAY }}" >> ~/.gradle/gradle.properties
+          echo "DC_RELEASE_KEY_PASSWORD=${{ secrets.KEYSTORE_PASSWORD }}" >> ~/.gradle/gradle.properties
+          ./gradlew assembleFossRelease
+          rm build/outputs/apk/foss/release/*universal*
+          ./gradlew assembleGplayRelease
+          mv build/outputs/apk/gplay/release/*universal* build/outputs/apk/foss/release/ArcaneChat-gplay.apk
+
+      - name: Release on GitHub
+        uses: softprops/action-gh-release@v1
+        with:
+          token: "${{ secrets.GITHUB_TOKEN }}"
+          body: '[<img src="store/get-it-on-gplay.png" alt="Get it on Google Play" height="48">](https://play.google.com/store/apps/details?id=com.github.arcanechat) [<img src="store/get-it-on-fdroid.png" alt="Get it on F-Droid" height="48">](https://f-droid.org/packages/chat.delta.lite) [<img src="store/get-it-on-github.png" alt="Get it on GitHub" height="48">](https://github.com/ArcaneChat/android/releases/latest/download/ArcaneChat-gplay.apk)'
+          prerelease: ${{ contains(github.event.ref, '-beta') }}
+          fail_on_unmatched_files: true
+          files: build/outputs/apk/foss/release/*.apk
+
+      - name: Release on ZapStore
+        run: |
+          export CHECKSUM=6e2c7cf6da53c3f1a78b523a6aacd6316dce3d74ace6f859c2676729ee439990
+          curl -sL https://cdn.zapstore.dev/$CHECKSUM -o zapstore
+          if echo "$CHECKSUM zapstore" | sha256sum -c --status; then
+            chmod +x zapstore
+            SIGN_WITH=${{ secrets.NOSTR_KEY }} ./zapstore publish --indexer-mode
+          else
+            echo "ERROR: checksum doesn't match!"
+          fi

.gitignore

@@ -0,0 +1,51 @@
+*.keystore
+.classpath
+project.properties
+.project
+.settings
+bin/
+gen/
+/gplay/
+.idea/
+*.iml
+*.so
+out
+tests
+lint.xml
+local.properties
+ant.properties
+.DS_Store
+build.log
+build-log.xml
+.gradle
+build
+signing.properties
+library/lib/
+library/obj/
+ffpr
+test/androidTestEspresso/res/values/arrays.xml
+obj/
+jni/libspeex/.deps/
+ndkArch
+
+# ignore debug symbols created by ./tools/upload-release.sh
+*-symbols.zip
+
+# ignore private scripts and directories, eg. local2github.prv.sh
+*.prv*
+
+# contains files for ndk-build when done from gradle.
+.externalNativeBuild
+
+# no vi tmp files
+*.swp
+
+jni/x86
+jni/x86_64
+jni/armeabi
+jni/armeabi-v7a
+jni/arm64-v8a
+
+artwork/drawable*/
+artwork/mipmap-*/
+*~

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "jni/deltachat-core-rust"]
+	path = jni/deltachat-core-rust
+	url = https://github.com/ArcaneChat/core

.tx/config

@@ -0,0 +1,10 @@
+[main]
+host     = https://www.transifex.com
+lang_map = id: in, ja_JP: ja, nl_NL: nl, pt_BR: pt-rBR, zh_CN: zh-rCN, zh_TW: zh-rTW
+
+[o:delta-chat:p:delta-chat-app:r:stringsxml]
+file_filter = src/main/res/values-<lang>/strings.xml
+source_file = src/main/res/values/strings.xml
+source_lang = en
+type        = ANDROID
+

BUILDING.md

@@ -0,0 +1,245 @@
+# Building and Testing
+
+This document describes how to set up the build environment,
+build and test the app. Before diving into developing, please
+first read [CONTRIBUTING.md](./CONTRIBUTING.md) for general
+contribution hints and conventions.
+
+Please follow all steps precisely.
+If you run into troubles,
+ask on one of the [communication channels](https://delta.chat/contribute) for help
+
+
+## Check Out Repository
+
+When checking out _deltachat-android_, make sure also to check out the
+subproject _deltachat-core-rust_:
+
+- When using Git, you can do this initially by
+  `$ git clone --recursive https://github.com/deltachat/deltachat-android`
+  or later by `git submodule update --init --recursive`. If you do this in your
+  home directory, this results in the folder `~/deltachat-android` which is just fine.
+
+## Generate JSON-RPC bindings
+
+To generate/update the JSON-RPC bindings (ex. `chat.delta.rpc.*` package)
+install Rust tooling (read sections below) and the [dcrpcgen tool](https://github.com/chatmail/dcrpcgen)
+then generate the code running the script:
+
+```
+./scripts/generate-rpc-bindings.sh
+```
+
+## Build Using Nix
+
+The repository contains [Nix](https://nixos.org/) development environment
+described in `flake.nix` file.
+If you don't have Nix installed,
+the easiest way is to follow the [Lix installation instructions](https://lix.systems/install/)
+as this results in a setup with [Flakes](https://nixos.wiki/wiki/Flakes) feature enabled out of the box
+and can be cleanly uninstalled with `/nix/nix-installer uninstall` once you don't need it anymore.
+
+Once you have Nix with Flakes feature set up start the development environment shell:
+```
+nix develop
+```
+Nix development environment contains Rust with cross-compilation toolchains and Android SDK.
+
+To [build an APK](https://developer.android.com/studio/build/building-cmdline) run the following 2 steps.
+Note that the first step may take some time to build for all architectures. You can optionally read 
+[the first comment block in the `ndk-make.sh` script](https://github.com/deltachat/deltachat-android/blob/master/scripts/ndk-make.sh) 
+for pointers on how to build for a specific architecture.
+```
+$ scripts/ndk-make.sh
+$ ./gradlew assembleDebug
+```
+
+Resulting APK files can be found in
+`build/outputs/apk/gplay/debug/` and
+`build/outputs/apk/fat/debug/`.
+
+## Build Using Dockerfile
+
+Another way to build APK is to use provided `Dockerfile`
+with [Docker](https://www.docker.com/) or [Podman](https://podman.io/).
+Podman is a drop-in replacement for Docker that does not require root privileges.
+
+If you don't have Docker or Podman setup yet, read [how to setup Podman](#setup-podman)
+below. If you don't want to use Docker or Podman, read [how to manually install the
+build environment](#install-build-environment).
+
+First, build the image `deltachat-android` by running
+```
+podman build --build-arg UID=$(id -u) --build-arg GID=$(id -g) . -t deltachat-android
+```
+or
+```
+docker build --build-arg UID=$(id -u) --build-arg GID=$(id -g) . -t deltachat-android
+```
+
+Then, run the image:
+```
+podman run --userns=keep-id -it --name deltachat -v $(pwd):/home/app:z -w /home/app localhost/deltachat-android
+```
+or
+```
+docker run -it --name deltachat -v $(pwd):/home/app:z -w /home/app localhost/deltachat-android
+```
+
+You can leave the container with Ctrl+D or by typing `exit` and re-enter it with 
+`docker start -ia deltachat` or `podman start -ia deltachat`.
+
+Within the container, install toolchains and build the native library:
+```
+deltachat@6012dcb974fe:/home/app$ scripts/install-toolchains.sh
+deltachat@6012dcb974fe:/home/app$ scripts/ndk-make.sh
+```
+
+Then, [build an APK](https://developer.android.com/studio/build/building-cmdline):
+```
+deltachat@6012dcb974fe:/home/app$ ./gradlew assembleDebug
+```
+
+### Troubleshooting
+
+- Executing `./gradlew assembleDebug` inside the container fails with `The SDK directory '/home/user/Android/Sdk' does not exist.`:
+
+  The problem is that Android Studio (outside the container) automatically creates a file `local.properties` with a content like `sdk.dir=/home/username/Android/Sdk`,
+  so, Gradle-inside-the-container looks for the Sdk at `/home/username/Android/Sdk`, where it can't find it.
+  You could:
+  - either: remove the file or just the line starting with `sdk.dir`
+  - or: run `./gradlew assembleDebug` from outside the container (however, there may be incompatibility issues if different versions are installed inside and outside the container)
+
+- Running the image fails with `ERRO[0000] The storage 'driver' option must be set in /etc/containers/storage.conf, guarantee proper operation.`:
+
+  In /etc/containers/storage.conf, replace the line: `driver = ""` with: `driver = "overlay"`.
+  You can also set the `driver` option to something else, you just need to set it to _something_.
+  [Read about possible options here](https://github.com/containers/storage/blob/master/docs/containers-storage.conf.5.md#storage-table).
+
+## <a name="setup-podman"></a>Setup Podman
+
+These instructions were only tested on a Manjaro machine so far. If anything doesn't work, please open an issue.
+
+First, [Install Podman](https://podman.io/getting-started/installation).
+
+Then, if you want to run Podman without root, run:
+```
+sudo touch /etc/subgid
+sudo touch /etc/subuid
+sudo usermod --add-subuids 165536-231072 --add-subgids 165536-231072 yourusername
+```
+(replace `yourusername` with your username).
+See https://wiki.archlinux.org/index.php/Podman#Rootless_Podman for more information.
+
+## <a name="install-build-environment"></a>Install Build Environment (without Docker or Podman)
+
+To setup build environment manually:
+- _Either_, in Android Studio, go to "Tools / SDK Manager / SDK Tools", enable "Show Package Details",
+  select "CMake" and the desired NDK (install the same NDK version as the [Dockerfile](https://github.com/deltachat/deltachat-android/blob/master/Dockerfile)), hit "Apply".
+- _Or_ read [Dockerfile](https://github.com/deltachat/deltachat-android/blob/master/Dockerfile) and mimic what it does.
+
+Then, in both cases, install Rust using [rustup](https://rustup.rs/)
+and Rust toolchains for cross-compilation by executing `scripts/install-toolchains.sh`.
+
+Then, configure `ANDROID_NDK_ROOT` environment variable to point to the Android NDK
+installation directory e.g. by adding this to your `.bashrc`:
+
+```bash
+export ANDROID_NDK_ROOT=${HOME}/Android/Sdk/ndk/[version] # (or wherever your NDK is) Note that there is no `/` at the end!
+export PATH=${PATH}:${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin/:${ANDROID_NDK_ROOT}
+```
+
+After that, call `scripts/ndk-make.sh` in the root directory to build core-rust.
+Afterwards run the project in Android Studio. The project requires API 25.
+
+With chance, that's it :) - if not, read on how to set up a proper development
+environment.
+
+
+## Install Development Environment
+
+1. Some libs required by Android Studio may be missing on 64 bit Linux machines
+   [Source](https://developer.android.com/studio/install.html)], so for Ubuntu execute
+   `$ sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 lib32z1 libbz2-1.0:i386`
+   and for Fedora execute
+   `$ sudo yum install zlib.i686 ncurses-libs.i686 bzip2-libs.i686`.
+
+2. Download Android Studio from <https://developer.android.com> (android-studio-ide-...-linux.zip)
+   and unpack the archive which contains a single folder called `android-studio`;
+   move this folder e.g. to `~/android-studio`.
+
+3. To launch Android Studio for the first time, open a terminal, navigate to
+   `~/android-studio/bin`, execute `./studio.sh` and use all the standard values
+   from the wizard.
+
+4. Android Studio now asks you if you want to open an existing project;
+   choose `~/deltachat-android` as created in the "Build" chapter (Android Studio starts to
+   build the project, however, there are some steps missing before this will
+   succeed).
+
+5. If components are missing, click on the corresponding error
+   message and install eg. required SDKs and the "Build-Tools" (you should
+   also find the option at "Tools / Android / SDK Manager / SDK Platforms").
+   Now the build should succeed - but the app still misses the native part.
+
+6. Download Android NDK from
+   [NDK Archives](https://developer.android.com/ndk/downloads)
+   and extract the archive containing a single folder
+   called something like `android-ndk-r23b-linux`; move this folder e.g. to `~/android-ndk`.
+
+7. Export the folder path to your environment as `ANDROID_NDK_ROOT` and add it to `PATH`.
+   You can achieve this e.g. by adding this to your `.bashrc`
+   ```bash
+   export ANDROID_NDK_ROOT=${HOME}/android-ndk
+   export PATH=${PATH}:${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin/:${ANDROID_NDK_ROOT}
+   ```
+
+## Run UI Tests and Benchmarks
+
+- You don't necessarily need a dedicated testing device.
+  Backup your current account first, maybe there are some bugs in switching accounts.
+
+- You can run benchmarks on either an emulated device or a real device.
+  You need at least Android 9. For better benchmark results,
+  you should run the benchmark on a real device and make sure that the core is compiled in release mode.
+
+- Disable animations on your device, otherwise the test may fail:
+  at "Developer options"
+  set all of "Window animation scale", "Transition animation scale" and "Animator duration scale" to 0x
+
+- In Android Studio: "File" / "Sync project with gradle files"
+
+- In Android Studio: "Run" / "Edit configurations" / "+" / "Android Instrumented test":
+  Either select a specific class or select "All in Module" / "OK" /
+  Select your configuration in the toolbar / Click on the green "run" button in the toolbar to run the tests
+
+### Get the benchmark results
+
+When the benchmark is done, you will get a result like
+`MEASURED RESULTS (Benchmark) - Going thorough all 10 chats: 11635,11207,11363,11352,11279,11183,11137,11145,11032,11057`.
+You can paste `11635,11207,11363,11352,11279,11183,11137,11145,11032,11057`
+into a cell in a LibreOffice spreadsheet, do "Data" / "Text to columns",
+choose `,` as a separator, hit "OK", and create a diagram.
+
+### Run online tests
+
+For some tests, you need to provide the credentials to an actual email account.
+You have 2 ways to do this:
+
+1. (Recommended): Put them into the file ~/.gradle/gradle.properties (create it if it doesn't exist):
+   ```
+   TEST_ADDR=youraccount@yourdomain.org
+   TEST_MAIL_PW=youpassword
+   ```
+
+2. Or set them via environment variables.
+
+## Decoding Symbols in Crash Reports
+
+```
+$ANDROID_NDK_ROOT/ndk-stack --sym obj/local/armeabi-v7a --dump crash.txt > decoded.txt
+```
+
+`obj/local/armeabi-v7a` is the extracted path from `deltachat-gplay-release-X.X.X.apk-symbols.zip` file from https://download.delta.chat/android/symbols/
+
+Replace `armeabi-v7a` by the correct architecture the logs come from (can be guessed by trial and error)

CONTRIBUTING.md

@@ -0,0 +1,153 @@
+# Contributing Guidelines
+
+Thank you for looking for ways to help on Delta Chat Android!
+
+This document tries to outline some conventions that may not be obvious
+and aims to give a good starting point to new contributors.
+
+
+## Reporting Bugs
+
+If you found a bug, [report it on Github](https://github.com/deltachat/deltachat-android/issues).
+
+Project maintainers may transfer bugs that are not UI specific
+(eg. network, database or encryption related)
+to [Delta Chat Core](https://github.com/deltachat/deltachat-core-rust/issues).
+If you assume beforehand, that the bug you've found belongs to Core,
+you can report there directly.
+
+Please search both open and closed issues to make sure your bug report is not a duplicate.
+
+For community interactions around Delta Chat
+please read our [Community Standards](https://delta.chat/community-standards).
+
+
+## Proposing Features
+
+If you have a feature request,
+create a new topic on the [Forum](https://support.delta.chat/c/features/6).
+
+
+## Rough UX Philosophy
+
+Some rough ideas, that may be helpful when thinking about how to enhance things:
+
+- Work hard to avoid options and up-front choices.
+  Thinking about concrete user stories may help on that.
+- Avoid to speak about keys and other hard to understand things in the primary UI.
+- The app shall work offline as well as with bad network.
+- Users do not read (much).
+- Consistency matters.
+- Offer only things that are highly useful to many people in primary UI.
+  If really needed, bury other things eg. in some menus.
+- The app should be for the many, not for the few.
+
+
+## Contributing Code
+
+The [BUILDING.md](./BUILDING.md) file explains in detail how to set up the build environment.
+Please follow all steps precisely.
+If you run into troubles,
+ask on one of the [communication channels](https://delta.chat/contribute) for help.
+
+To contribute code,
+[open a Pull Request](https://github.com/deltachat/deltachat-android/pulls).
+
+If you have write access to the repository,
+push a branch named `<username>/<feature>`
+so it is clear who is responsible for the branch,
+and open a PR proposing to merge the change.
+Otherwise fork the repository and create a branch in your fork.
+
+Please add a meaningful description to your PR
+so that reviewers get an idea about what the modifications are supposed to do.
+
+A meaningful PR title is helpful for [updating `CHANGELOG.md` on releases](./RELEASE.md)
+(CHANGELOG.md is updated manually
+to only add things that are at least roughly understandable by the end user)
+
+If the changes affect the user interface,
+screenshots are very helpful,
+esp. before/after screenshots.
+
+
+### Coding Conventions
+
+Source files are partly derived from different other open source projects
+and may follow different coding styles and conventions.
+
+If you do a PR fixing a bug or adding a feature,
+please embrace the coding convention you see in the corresponding files,
+so that the result fits well together.
+
+Do not refactor or rename things in the same PR
+to make the diff small and the PR easy to review.
+
+Project language is Java.
+
+By using [Delta Chat Core](https://github.com/deltachat/deltachat-core-rust)
+there is already a strong separation between "UI" and "Model".
+Further separations and abstraction layers are often not helpful
+and only add more complexity.
+
+Try to avoid premature optimisation
+and complexity because it "may be needed in some future".
+Usually, it is not.
+
+Readable code is better than having some Java paradigms fulfilled.
+Classic Java has a strong drive to add lots of classes, factories, one-liner-functions.
+Try to not follow these patterns and keep things really on point and simple.
+If this gets in conflict with embracing existing style, however,
+consistency with existing code is more important.
+
+The "Delta Chat Core" is a high-level interface to what the UI actually needs,
+data should be served in a form that the UI do not need much additional work.
+If this is not the case, consider a feature proposal to "Delta Chat Core".
+
+
+### Merging Conventions
+
+PR are merged usually to the branch `main` from which [releases](./RELEASE.md) are done.
+
+As a default, do a `git rebase main` in case feature branches and `main` differ too much.
+
+Once a PR has an approval, unless stated otherwise, it can be merged by the author.
+A PR may be approved but postponed to be merged eg. because of an ongoing release.
+
+To ensure the correct merge merge strategy, merging left up to the PR author:
+
+- Usually, PR are squash-merged
+  as UI development often results in tiny tweak commits that are not that meaningful on their own.
+- If all commits are meaningful and have a well-written description,
+  they can be rebased-merged.
+
+If you do not have write access to the repository,
+you may leave a note in the PR about the desired merge strategy.
+
+
+## Translations
+
+Translations are done via [Transifex](https://explore.transifex.com/delta-chat/),
+you can log in there with your E-Mail Address or with a Github or Google handle.
+You find two projects there:
+- "Delta Chat App" contains the strings used in the app's UI
+- "Delta Chat Website" contains the offline help from "Settings / Help"
+  as well as the pages used on <https://delta.chat>
+
+Most strings and the whole help are used for all systems
+(Android, iOS, Linux, Windows, macOS)
+and should be formulated accordingly.
+
+If you want to change the english sources,
+do a PR to [`strings.xml`](https://github.com/deltachat/deltachat-android/blob/main/res/values/strings.xml)
+or to [`help.md`](https://github.com/deltachat/deltachat-pages/blob/master/en/help.md).
+Again, please do not mix adding things and refactorings, esp. for `help.md`,
+this would require retranslations and should be considered carefully.
+
+
+## Other Ways To Contribute
+
+For other ways to contribute, refer to the [website](https://delta.chat/contribute).
+
+If you think, something important is missed in this overview,
+please do a PR to this document :)

Dockerfile

@@ -0,0 +1,44 @@
+FROM docker.io/debian:12.4
+
+# Install Android Studio requirements
+# See https://developer.android.com/studio/install#linux
+RUN apt-get update -y \
+&& apt-get install -y --no-install-recommends \
+wget \
+curl \
+unzip \
+openjdk-17-jre \
+file \
+build-essential \
+&& rm -rf /var/lib/apt/lists/*
+
+ARG USER=deltachat
+ARG UID=1000
+ARG GID=1000
+
+RUN groupadd -g $GID -o $USER
+RUN useradd -m -u $UID -g $GID -o $USER
+USER $USER
+
+ENV ANDROID_SDK_ROOT /home/${USER}/android-sdk
+RUN mkdir ${ANDROID_SDK_ROOT}
+WORKDIR $ANDROID_SDK_ROOT
+RUN wget -q https://dl.google.com/android/repository/commandlinetools-linux-8512546_latest.zip && \
+  unzip commandlinetools-linux-8512546_latest.zip && \
+  rm commandlinetools-linux-8512546_latest.zip
+
+RUN yes | ${ANDROID_SDK_ROOT}/cmdline-tools/bin/sdkmanager --sdk_root=${ANDROID_SDK_ROOT} --licenses
+
+ENV PATH ${PATH}:${ANDROID_SDK_ROOT}/cmdline-tools/bin
+
+# Install NDK manually. Other SDK parts are installed automatically by gradle.
+#
+# If you change the NDK version here, also change it in `flake.nix`.
+# NDK version r27 LTS aka 27.0.11902837
+RUN sdkmanager --sdk_root=${ANDROID_SDK_ROOT} 'ndk;27.0.11902837'
+
+ENV ANDROID_NDK_ROOT ${ANDROID_SDK_ROOT}/ndk/27.0.11902837
+ENV PATH ${PATH}:${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64/bin/
+
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain none
+ENV PATH ${PATH}:/home/${USER}/.cargo/bin

LICENSE

@@ -0,0 +1,621 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
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+stand ready to extend this provision to those domains in future versions
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+
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+
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+modification follow.
+
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+
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+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS

README.md

@@ -0,0 +1,33 @@
+## ArcaneChat Android Client
+
+A [Delta Chat](https://delta.chat/) client for Android. Learn more at: https://arcanechat.me
+
+[<img src="store/get-it-on-gplay.png" alt="Get it on Google Play" height="48">](https://play.google.com/store/apps/details?id=com.github.arcanechat)
+[<img src="store/get-it-on-fdroid.png" alt="Get it on F-Droid" height="48">](https://f-droid.org/packages/chat.delta.lite)
+[<img src="store/get-it-on-github.png" alt="Get it on GitHub" height="48">](https://github.com/ArcaneChat/android/releases/latest/download/ArcaneChat-gplay.apk)
+
+
+<img alt="Screenshot" src="fastlane/metadata/android/en-US/images/phoneScreenshots/1.png" width="298" /> <img alt="Screenshot" src="fastlane/metadata/android/en-US/images/phoneScreenshots/2.png" width="298" />
+
+# WebXDC
+
+This app has some extended support for WebXDC apps:
+
+- `window.webxdc.arcanechat` a string with the ArcaneChat version and can be used by app developers
+  to detect when they can use the ArcaneChat-specific features.
+- `sendToChat()`: extra property `subject` can be set to a text string to set message/email's subject.
+- `sendToChat()`: extra property `html` can be set to a string of html markup to set the HTML part of the email/message.
+- `sendToChat()`: the file object parameter also accepts a `type` field that can be one of:
+  * `"sticker"`
+  * `"image"`
+  * `"audio"`
+  * `"video"`
+  * `"file"` (default if `type` field is not present)
+- Inside apps, clicking external links is supported, ex. to open in browser, so you can include links to your website or donation pages.
+- `manifest.toml` field: `orientation`, if you set it to `"landscape"` your app will be launched in landscape mode.
+
+# Credits
+
+This app is based on the [official Delta Chat client](https://github.com/deltachat/deltachat-android) with several improvements.
+
+This app uses a [modified](https://github.com/ArcaneChat/core) version of the [Chatmail Core Library](https://github.com/chatmail/core).

RELEASE.md

@@ -0,0 +1,148 @@
+# Android Release Checklist
+
+
+## Generate APKs
+
+### Update core and translations
+
+on the command-line, in a PR called "update-core-and-stuff-DATE":
+
+1. update core:
+   ```
+   ./scripts/update-core.sh               # shows used branch
+   ./scripts/update-core.sh BRANCH_OR_TAG # update to tag or latest commit of branch
+   ./scripts/clean-core.sh                # helps on weird issues, do also "Build / Clean"
+   ./scripts/ndk-make.sh
+   ```
+
+a) Update `CHANGELOG.md`
+      from <https://github.com/chatmail/core/blob/main/CHANGELOG.md>,
+      do not just copy and avoid technical terms.
+      The changelog is for the end user and shall show impacts form that angle.
+      Add used core version to end of changelog entry
+      as `update to core 1.2.3` or `using core 1.2.3`
+
+
+2. update JSON-RPC bindings:
+   ```
+   ./scripts/update-rpc-bindings.sh
+   ```
+
+3. update translations and local help:
+   ```
+   ./scripts/tx-pull-translations.sh
+   ./scripts/create-local-help.sh  # requires deltachat-pages checked out at ../deltachat-pages
+   ```
+
+### Prepare release
+
+the following steps are done in a PR called `prep-VERSION` (no leading "v"):
+
+3. Update `CHANGELOG.md`:
+   Rename header with version number and add date as `YYYY-MM`
+
+   in case previous entries of the changelog refer to betas or to not officially released versions,
+   the entries can be summarized.
+   this makes it easier for the end user to follow changes by showing major changes atop.
+
+4. add a device message to `ConversationListActivity::onCreate()` or remove the old one.
+   do not repeat the CHANGELOG here: write what really is the ux outcome
+   in a few lines of easy speak without technical terms.
+   if there is time for a translation round, do `./scripts/tx-push-source.sh`
+   **ping tangible translators** and start over at step 2.
+
+5. bump `versionCode` _and_ `versionName` (no leading "v") in `build.gradle`
+
+6. build APKs:
+   a) generate debug APK at "Build / Build Bundle(s)/APK / Build APK(s)"  
+   b) generate release APK at "Build / Generate Signed Bundle or APK",
+      select "APK", add keys, flavor `gplayRelease`.
+      this APK will go to the stores and is located at `gplay/release`
+
+
+## Push Test Releases
+
+7. a) `./scripts/upload-beta.sh VERSION` uploads both APKs to testrun.org and drafts a message.  
+   b) add things critically to be tested to the message (this is not the changelog nor the device message)  
+   c) post the message to relevant testing channels, **ping testers**  
+   d) make sure, the `prep-VERSION` PR **gets merged**
+
+On serious deteriorations, **ping devs**, make sure they get fixed, and start over at step 1.
+
+
+## Release on get.delta.chat
+
+Take care the APK used here and in the following steps
+are binary-wise the same as pushed to testers and not overwritten by subsequent builds.
+
+8. a) `./scripts/upload-release.sh VERSION`  
+   b) do a PR to bump `VERSION_ANDROID` (without leading `v`) on
+      `https://github.com/deltachat/deltachat-pages/blob/master/_includes/download-boxes.html`  
+   c) make sure, **the PR gets merged**
+      and the correct APK is finally available on get.delta.chat
+
+only afterwards, push the APK to stores. **consider a blog post.**
+
+
+## Release on Play Store
+
+on <https://play.google.com/apps/publish/>:
+
+9. a) open "Delta Chat / Test and release / Production"
+      then "Create new release" and upload APK from above
+   b) fill out "Release details/Release notes" (500 chars), add the line
+      "These features will roll out over the coming days. Thanks for using Delta Chat!";
+      release name should be default ("123 (1.2.3)")  
+   c) click "Next", set "Rollout Percentage" to 50%, click "Save"
+   d) Go to "Publishing Overview", "Managed publishing" is usually off;
+      click "Send change for review", confirm
+
+2 days later, change "Rollout Percentage" to 99%. Two more days later to 100%.
+Rollout is anyways slower in practise, however,
+only as long as we do not enter 100%, we can retract the version
+(Once we reach 100%, we have to submit a new version for approval.
+During these up to 4 days, sometimes longer, we cannot do anything on existing rollout)
+
+
+## Tag for F-Droid and create Github release
+
+10. make sure, everything is pushed, then:  
+    $ git tag v1.2.1 COMMIT; git push --tags
+    
+F-Droid picks on the tags starting with "v" and builds the version.
+This may take some days.
+
+11. a) on <https://github.com/deltachat/deltachat-android/releases>,
+       tap "Draft a new Release", choose just created tag, fill changelog
+	b) add APK from above using "Attach binary".
+	c) tap "Publish release"
+
+
+## Release on Huawei AppGallery
+
+on <https://developer.huawei.com/consumer/en/appgallery>:
+
+13. a) go to "Upload your app / Android / Delta Chat / Update", again "Update" upper right
+    b) "Manage Packages / Upload", upload the APK from above, hit "Save"
+    c) Update "App Information / New Features", hit "Save", then "Next"
+    d) Hit "Submit"; on the next page, confirm version and language
+
+
+## Releases on other stores (ex. Passkoocheh)
+
+These stores are not under our control.
+On important updates **ping store maintainers** and ask to update.
+
+
+## Testing checklist
+
+Only some rough ideas, ideally, this should result into a simple checklist
+that can be checked before releasing.
+However, although it would be nice to test "everything", we should keep in mind
+that the test should be doable in, say, 10~15 minutes.
+- create new account with (one of?): gmail, yandex, other
+  or (?) test an existing account
+- send and receive a message
+- create a group
+- do a contact verification
+- join a group via a qr scan

build.gradle

@@ -0,0 +1,308 @@
+plugins {
+    id 'com.android.application' version '8.11.1'
+    id 'com.google.gms.google-services' version '4.4.1'
+}
+
+repositories {
+    google()
+    mavenCentral()
+    maven {
+        url "https://www.jitpack.io"
+        name 'JitPack Github wrapper'
+    }
+}
+
+android {
+    dependenciesInfo {
+        // Disables dependency metadata when building APKs.
+        includeInApk = false
+        // Disables dependency metadata when building Android App Bundles.
+        includeInBundle = false
+    }
+    namespace "org.thoughtcrime.securesms"
+    flavorDimensions "none"
+    compileSdk 36
+
+    // Set NDK version to strip native libraries.
+    // Even though we compile our libraries outside Gradle with `scripts/ndk-make.sh`,
+    // without ndkVersion `./gradlew clean` followed by `./gradlew assembleDebug --warning-mode=all` emits the following warning:
+    //   > Task :stripFatDebugDebugSymbols
+    //   Unable to strip the following libraries, packaging them as they are: libanimation-decoder-gif.so, libnative-utils.so.
+    // See <https://issuetracker.google.com/issues/237187538> for details.
+    ndkVersion "27.0.12077973"
+    useLibrary 'org.apache.http.legacy'
+
+    defaultConfig {
+        versionCode 30000734
+        versionName "2.33.1"
+
+        applicationId "chat.delta.lite"
+        multiDexEnabled true
+
+        minSdkVersion 21
+        targetSdkVersion 36
+
+        vectorDrawables.useSupportLibrary = true
+
+        // base name of the generated apk
+        project.ext.set("archivesBaseName", "deltachat");
+
+        buildConfigField "boolean", "DEV_BUILD", "false"
+
+        ndk {
+            if(project.hasProperty("ABI_FILTER")) {
+                abiFilters ABI_FILTER
+            } else {
+                abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
+            }
+        }
+
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        buildConfigField("String", "TEST_ADDR", buildConfigProperty("TEST_ADDR"))
+        buildConfigField("String", "TEST_MAIL_PW", buildConfigProperty("TEST_MAIL_PW"))
+        buildConfigField("String", "NDK_ARCH", getNdkArch())
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    packagingOptions {
+        jniLibs {
+            doNotStrip '**/*.so'
+            keepDebugSymbols += ['*/mips/*.so', '*/mips64/*.so']
+        }
+        resources {
+            excludes += ['LICENSE.txt', 'LICENSE', 'NOTICE', 'asm-license.txt', 'META-INF/LICENSE', 'META-INF/NOTICE']
+        }
+    }
+
+
+    signingConfigs {
+        debug {
+            // add `DC_DEBUG_STORE_FILE=/path/to/debug.keystore` to `~/.gradle/gradle.properties`
+            if(project.hasProperty("DC_DEBUG_STORE_FILE" )) {
+                storeFile file(DC_DEBUG_STORE_FILE )
+            }
+        }
+        releaseFdroid {
+            // can be defined at `~/.gradle/gradle.properties` or at "Build/Generate signed APK"
+            if(project.hasProperty("DC_RELEASE_STORE_FILE")) {
+                storeFile file(DC_RELEASE_STORE_FILE)
+                storePassword DC_RELEASE_STORE_PASSWORD
+                keyAlias DC_RELEASE_KEY_ALIAS_FDROID
+                keyPassword DC_RELEASE_KEY_PASSWORD
+            }
+        }
+        releaseApk {
+            // can be defined at `~/.gradle/gradle.properties` or at "Build/Generate signed APK"
+            if(project.hasProperty("DC_RELEASE_STORE_FILE")) {
+                storeFile file(DC_RELEASE_STORE_FILE)
+                storePassword DC_RELEASE_STORE_PASSWORD
+                keyAlias DC_RELEASE_KEY_ALIAS_GPLAY
+                keyPassword DC_RELEASE_KEY_PASSWORD
+            }
+        }
+        releaseBundle {
+            if(project.hasProperty("DC_BUNDLE_STORE_FILE")) {
+                storeFile file(DC_BUNDLE_STORE_FILE)
+                storePassword DC_BUNDLE_STORE_PASSWORD
+                keyAlias DC_BUNDLE_KEY_ALIAS
+                keyPassword DC_BUNDLE_STORE_PASSWORD
+            }
+        }
+    }
+
+    productFlavors {
+        foss {
+            dimension "none"
+            buildConfigField "boolean", "USE_PLAY_SERVICES", "false"
+        }
+        gplay {
+            dimension "none"
+            apply plugin: "com.google.gms.google-services"
+            buildConfigField "boolean", "USE_PLAY_SERVICES", "true"
+            applicationId "com.github.arcanechat"
+        }
+    }
+
+    buildTypes {
+        debug {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            testProguardFiles 'test-proguard-rules.pro'
+            applicationIdSuffix ".beta"
+        }
+        release {
+            // minification and proguard disabled for now.
+            //
+            // when enabled, it can cut down apk size about 6%,
+            // however this also has the potential to break things.
+            // so exceptions are needed and have to be maintained.
+            // (see git-history and https://github.com/deltachat/deltachat-android/issues/905 )
+            //
+            // nb: it is highly recommended to use the same settings in debug+release -
+            // otherwise problems might be noticed delayed only
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            testProguardFiles 'test-proguard-rules.pro'
+            productFlavors.foss.signingConfig signingConfigs.releaseFdroid
+            productFlavors.gplay.signingConfig signingConfigs.releaseApk
+        }
+    }
+
+    if(!project.hasProperty("ABI_FILTER")) {
+      splits {
+        abi {
+            enable true
+            reset()
+            include "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
+            universalApk true
+        }
+      }
+    }
+
+    project.ext.versionCodes = ['armeabi-v7a': 1, 'arm64-v8a': 2, 'x86': 3, 'x86_64': 4]
+
+    android.applicationVariants.all { variant ->
+        variant.outputs.all { output ->
+            output.outputFileName = output.outputFileName
+                .replace("android", "ArcaneChat")
+                .replace("-release", "")
+                .replace(".apk", "-${variant.versionName}.apk")
+            if(project.hasProperty("ABI_FILTER")) {
+              output.versionCodeOverride =
+                variant.versionCode * 10 + project.ext.versionCodes.get(ABI_FILTER)
+            } else {
+              output.versionCodeOverride =
+                variant.versionCode * 10 + project.ext.versionCodes.get(output.getFilter(com.android.build.OutputFile.ABI), 4)
+           }
+        }
+    }
+
+    sourceSets {
+        main {
+            jniLibs.srcDirs = ['libs']
+        }
+    }
+
+    androidResources {
+        generateLocaleConfig true
+    }
+
+    lint {
+        abortOnError false
+    }
+    buildFeatures {
+        renderScript true
+        aidl true
+    }
+
+}
+
+final def  markwon_version =  '4.6.2'
+
+dependencies {
+    // ArcaneChat-only dependencies:
+    implementation "io.noties.markwon:core:$markwon_version"
+    implementation "io.noties.markwon:ext-strikethrough:$markwon_version"
+    implementation "io.noties.markwon:inline-parser:$markwon_version"
+    implementation 'com.airbnb.android:lottie:4.2.2' // Lottie animations support.
+
+    implementation 'androidx.concurrent:concurrent-futures:1.3.0'
+    implementation 'androidx.sharetarget:sharetarget:1.2.0'
+    implementation 'androidx.webkit:webkit:1.14.0'
+    implementation 'androidx.multidex:multidex:2.0.1'
+    implementation 'androidx.appcompat:appcompat:1.7.1'
+    implementation 'com.google.android.material:material:1.12.0'
+    implementation 'androidx.legacy:legacy-support-v13:1.0.0'
+    implementation ('androidx.preference:preference:1.2.1') {
+        exclude group: 'androidx.lifecycle', module:'lifecycle-viewmodel'
+        exclude group: 'androidx.lifecycle', module:'lifecycle-viewmodel-ktx'
+    }
+    implementation 'androidx.legacy:legacy-preference-v14:1.0.0'
+    implementation 'androidx.exifinterface:exifinterface:1.4.1'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    implementation 'androidx.lifecycle:lifecycle-common-java8:2.6.2'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel:2.6.2'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.2'
+    implementation 'androidx.work:work-runtime:2.9.1'
+    implementation 'androidx.emoji2:emoji2-emojipicker:1.5.0'
+    implementation 'com.google.guava:guava:31.1-android'
+    implementation 'com.google.android.exoplayer:exoplayer-core:2.19.1' // plays video and audio
+    implementation 'com.google.android.exoplayer:exoplayer-ui:2.19.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.2.0'
+    implementation 'com.google.zxing:core:3.3.0' // fixed version to support SDK<24
+    implementation ('com.journeyapps:zxing-android-embedded:4.3.0') { transitive = false } // QR Code scanner
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.11.1' // used as JSON library
+    implementation 'com.github.Baseflow:PhotoView:2.3.0' // does the zooming on photos / media
+    implementation 'com.caverock:androidsvg-aar:1.4' // SVG support.
+    implementation 'com.github.bumptech.glide:glide:4.16.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.16.0'
+    annotationProcessor 'androidx.annotation:annotation:1.9.1'
+    implementation 'com.makeramen:roundedimageview:2.3.0' // crops the avatars to circles
+    implementation 'com.github.amulyakhare:TextDrawable:558677ea31'  // number of unread messages,
+    // the one-letter circle for the contacts (when there is not avatar) and a white background.
+    implementation 'com.googlecode.mp4parser:isoparser:1.0.6' // MP4 recoding; upgrading eg. to 1.1.22 breaks recoding, however, i have not investigated further, just reset to 1.0.6
+    implementation ('com.davemorrissey.labs:subsampling-scale-image-view:3.10.0') { // for the zooming on photos / media
+        exclude group: 'com.android.support', module: 'support-annotations'
+    }
+
+    // Replacement for ContentResolver
+    // that protects against the Surreptitious Sharing attack.
+    // <https://github.com/cketti/SafeContentResolver>
+    implementation 'de.cketti.safecontentresolver:safe-content-resolver-v21:1.0.0'
+
+    gplayImplementation('com.google.firebase:firebase-messaging:24.1.2') { // for PUSH notifications, don't upgrade: v25.0.0 requires minSdk>=23
+        exclude group: 'com.google.firebase', module: 'firebase-core'
+        exclude group: 'com.google.firebase', module: 'firebase-analytics'
+        exclude group: 'com.google.firebase', module: 'firebase-measurement-connector'
+    }
+
+    testImplementation 'junit:junit:4.13.2'
+    testImplementation 'org.assertj:assertj-core:3.27.3'
+    testImplementation 'org.mockito:mockito-core:5.18.0'
+    testImplementation 'org.powermock:powermock-api-mockito:1.7.4'
+    testImplementation 'org.powermock:powermock-module-junit4:2.0.9'
+    testImplementation 'org.powermock:powermock-module-junit4-rule:2.0.9'
+    testImplementation 'org.powermock:powermock-classloading-xstream:2.0.9'
+
+    androidTestImplementation 'androidx.test:runner:1.7.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.7.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.7.0'
+    androidTestImplementation 'androidx.test:rules:1.7.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.3.0'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+
+    androidTestImplementation ('org.assertj:assertj-core:3.27.3') {
+        exclude group: 'org.hamcrest', module: 'hamcrest-core'
+    }
+}
+
+String buildConfigProperty(String name) {
+    return "\"${propertyOrEmpty(name)}\""
+}
+
+String propertyOrEmpty(String name) {
+    Object p = findProperty(name)
+    if (p == null) return environmentVariable(name)
+    return (String) p
+}
+
+static String environmentVariable(String name) {
+    String env = System.getenv(name)
+    if (env == null) return ""
+    return env
+}
+
+String getNdkArch() {
+    Properties properties = new Properties()
+    def file = project.rootProject.file('ndkArch')
+    if (!file.exists()) return "\"\""
+    properties.load(file.newDataInputStream())
+    def arch = properties.getProperty('NDK_ARCH')
+    if (arch == null) return "\"\""
+    return "\"$arch\""
+}

docs/f-droid.md

@@ -0,0 +1,79 @@
+# F-Droid - Overview
+
+- <https://f-droid.org/en/packages/com.b44t.messenger/>
+  is the Delta Chat page on F-Droid.org,
+  the F-Droid app will show similar information.
+
+- <https://github.com/deltachat/deltachat-android/tree/main/metadata>
+  contains the description, icon, screenshots and all meta data shown for Delta Chat on F-Droid
+  in the [fastlane format](https://f-droid.org/en/docs/All_About_Descriptions_Graphics_and_Screenshots/#fastlane-structure).
+
+- <https://gitlab.com/fdroid/fdroiddata/blob/master/metadata/com.b44t.messenger.yml>
+  contains [additional F-Droid-specific metadata](https://f-droid.org/en/docs/All_About_Descriptions_Graphics_and_Screenshots/#in-the-f-droid-repo)
+  and build instructions that do not fit the fastlane format.
+  F-Droid adds new versions automatically to the end of `.yml` file.
+
+- New versions are recognized by tags in the form `v1.2.3` -
+  before adding tags like that, have a look at
+  <https://github.com/deltachat/deltachat-android/blob/main/RELEASE.md#release-on-f-droid>.
+  The build and distribution is expected to take
+  [up to 7 days](https://gitlab.com/fdroid/wiki/-/wikis/FAQ#how-long-does-it-take-for-my-app-to-show-up-on-website-and-client).
+
+
+# F-Droid Build status
+
+- <https://monitor.f-droid.org/builds>
+  shows F-Droid's overall build status,
+  if Delta Chat shows up at "Need updating" or "Running",
+  things are working as expected. :)
+
+- <https://f-droid.org/repo/com.b44t.messenger_VERSIONCODE.apk>  
+  (with VERSIONCODE = 537 or so) links to successfully built apk
+  even if it is not yet in the index (which may take some more time).
+  F-Droid keeps the last 3 successful builds in the main repo,
+  while the rest will be moved to the Archive repo:
+  <https://f-droid.org/archive/com.b44t.messenger_VERSIONCODE.apk>
+
+
+# Use F-Droid-tools locally
+
+$ git clone https://gitlab.com/fdroid/fdroiddata  
+$ git clone https://gitlab.com/fdroid/fdroidserver  
+$ cd fdroiddata  
+
+Now, metadata/com.b44t.messenger.yml can be modified.
+For testing, one can change the repo to a branch
+by adding the line `Update Check Mode:RepoManifest/BRANCH` to the file.
+
+Set some path to ndk etc:  
+$ cp ../fdroidserver/examples/config.py .  # adapt file as needed
+
+Checkout repo as F-Droid would do:  
+$ ../fdroidserver/fdroid checkupdates -v com.b44t.messenger  
+(for testing with uncommitted changes, add --allow-dirty)
+
+Build repo as F-Droid would do:  
+$ ../froidserver/fdroid build -v com.b44t.messenger:<versionCode>
+
+(via <https://f-droid.org/docs/Installing_the_Server_and_Repo_Tools/> 
+and <https://f-droid.org/docs/Building_Applications/> -
+might require `pip install pyasn1 pyasn1_modules pyaml requests`)
+
+
+# Changing the description
+
+- Change the files `metadata/en-US/short_description.txt`
+  and `metadata/en-US/full_description.txt`
+  in <https://github.com/deltachat/deltachat-android/> repository.
+
+- Make sure there is a "newline" at the end of the description
+  (see <https://gitlab.com/fdroid/fdroiddata/merge_requests/3580>).
+
+
+# Changing F-Droid metadata
+
+- The file `com.b44t.messenger.yml` can be changed via a PR to the <https://gitlab.com/fdroid/fdroiddata/> repository.
+
+- Reformat the metadata using  
+  $ ../fdroidserver/fdroid rewritemeta com.b44t.messenger  # called from fdroiddata dir
+ 

docs/playstore.md

@@ -0,0 +1,14 @@
+# Google Play Store
+
+If you have access to uploading and signing apks,
+this can be done at
+https://play.google.com/apps/publish/
+
+The description can be discussed and changed at
+https://github.com/deltachat/deltachat-android/blob/master/store/text.md
+In future, we can also add the screenshots or other assets there.
+
+
+# Google Play Releases
+
+see `release-checklist.md`

fastlane/metadata/android/en-US/full_description.txt

@@ -0,0 +1,36 @@
+ArcaneChat is a decentralized and secure instant messenger that is easy to use for friends and family.
+
+• Anonymous. Instant onboarding without a phone number, e-mail or other private data.
+
+• Flexible. Supports multiple chat profiles and is easy to setup on multiple devices.
+
+• Extensible. Use mini-apps in chats like shopping lists, calendars or games.
+
+• Reliable. Works under bad and adversarial network conditions.
+
+• Secure. Audited End-to-End encryption safe against network and server attacks.
+
+• Sovereign. Can be run with your own e-mail address or server.
+
+ArcaneChat is a Delta Chat client and was created with a focus on usability, good user experience, and saving data plan. Also the app usually experiments with new features that eventually might get added to the official Delta Chat client.
+
+<b>Main differences with official Delta Chat client:</b>
+
+<ul>
+<li>Support for some markdown styles in text messages (bold, italic, strike, etc.)</li>
+<li>Support for displaying Telegram's animated stickers (.tgs files)</li>
+<li>Support for SVG images previews</li>
+<li>Multiple color themes/skins</li>
+<li>It is possible to disable profiles to completely disconnect them saving data/bandwidth</li>
+<li>You can easily see the connection status of all your profiles in the profile switcher</li>
+<li>Extra option to share location for 12 hours</li>
+<li>Clicking on a message with a POI location, will open the POI on the map</li>
+<li>Last-seen status of contacts is shown in your contact list, like in WhatsApp, Telegram, etc.</li>
+<li>Videos are played in loop, useful for short GIF videos</li>
+<li>Verified icon is shown in the chat list for the "Device Messages" and "Saved Messages" chat to avoid fishing attempts by scammer pretending to be the official chats</li>
+<li>Voice messages have more aggressive compression in "worse quality" mode to save data plan</li>
+<li>Automatic download of messages limited to 640KB by default</li>
+<li>Profile's display name is always shown in the app's title bar instead of the name of the app</li>
+<li>For mini-apps developers: there are some extra features in the WebXDC API, check https://github.com/ArcaneChat/android/#webxdc</li>
+<li>Better settings organization with additional "Privacy" section</li>
+</ul>

fastlane/metadata/android/en-US/short_description.txt

@@ -0,0 +1 @@
+⚡ Fast encrypted chats for the family 🎉

fastlane/metadata/android/en-US/title.txt

@@ -0,0 +1 @@
+ArcaneChat

fastlane/metadata/android/ru-RU/full_description.txt

@@ -0,0 +1,36 @@
+ArcaneChat — децентрализованный и защищённый мессенджер, удобный для друзей и семьи.
+
+• Анонимность. Мгновенный вход без номера телефона, e-mail или других личных данных.
+
+• Гибкость. Поддерживает несколько профилей чатов и легко настраивается на нескольких устройствах.
+
+• Расширяемость. В чатах можно использовать мини-приложения: списки покупок, календари или игры.
+
+• Надёжность. Работает даже при плохом соединении и в сложных сетевых условиях.
+
+• Безопасность. Проверенное сквозное шифрование, защищённое от сетевых и серверных атак.
+
+• Самостоятельность. Может работать с вашим собственным e-mail-адресом или сервером.
+
+ArcaneChat — клиент Delta Chat, разработанный с акцентом на удобство, качественный UX и экономию трафика. Также приложение часто экспериментирует с новыми функциями, которые со временем могут быть добавлены в официальный клиент Delta Chat.
+
+<b>Основные отличия от официального клиента Delta Chat:</b>
+
+<ul>
+<li>Поддержка некоторых стилей markdown в текстовых сообщениях (жирный, курсив, зачёркнутый и т.д.)</li>
+<li>Поддержка отображения анимированных стикеров Telegram (.tgs-файлы)</li>
+<li>Поддержка предпросмотра SVG-изображений</li>
+<li>Несколько цветовых тем/скинов</li>
+<li>Возможность отключать профили, полностью отключая им доступ в сеть для экономии трафика</li>
+<li>На панели переключения профилей видно состояние подключения каждого профиля</li>
+<li>Дополнительная опция для обмена местоположением на 12 часов</li>
+<li>Нажатие на сообщение с POI открывает его на карте</li>
+<li>Статус «был(а) в сети» отображается в списке контактов, как в WhatsApp, Telegram и т.д.</li>
+<li>Видео воспроизводятся по кругу — удобно для коротких GIF-видео</li>
+<li>У чата «Device Messages» в списке чатов отображается значок подтверждения</li>
+<li>В режиме «низкое качество» голосовые сообщения сжимаются сильнее для экономии трафика</li>
+<li>Автоматическая загрузка сообщений по умолчанию ограничена 640KB</li>
+<li>Отображаемое имя профиля всегда видно в заголовке приложения вместо названия приложения</li>
+<li>Для разработчиков мини-приложений: доступны дополнительные возможности WebXDC API, см. https://github.com/ArcaneChat/android/#webxdc</li>
+<li>Более удобная организация настроек с дополнительным разделом «Privacy»</li>
+</ul>

fastlane/metadata/android/ru-RU/short_description.txt

@@ -0,0 +1 @@
+⚡ Быстрые зашифрованные чаты для семьи 🎉

fastlane/metadata/android/ru-RU/title.txt

@@ -0,0 +1 @@
+ArcaneChat

flake.lock

@@ -0,0 +1,187 @@
+{
+  "nodes": {
+    "android": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1756239746,
+        "narHash": "sha256-0ibN685tT+u/Nbmbrrq9G3mRUzct2Votyv/a7Wwv26s=",
+        "owner": "tadfisher",
+        "repo": "android-nixpkgs",
+        "rev": "256631d162ec883b2341ee59621516e1f65f0f6b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "tadfisher",
+        "repo": "android-nixpkgs",
+        "type": "github"
+      }
+    },
+    "devshell": {
+      "inputs": {
+        "nixpkgs": [
+          "android",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1741473158,
+        "narHash": "sha256-kWNaq6wQUbUMlPgw8Y+9/9wP0F8SHkjy24/mN3UAppg=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "7c9e793ebe66bcba8292989a68c0419b737a22a0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1756125398,
+        "narHash": "sha256-XexyKZpf46cMiO5Vbj+dWSAXOnr285GHsMch8FBoHbc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "3b9f00d7a7bf68acd4c4abb9d43695afb04e03a5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1756159630,
+        "narHash": "sha256-ohMvsjtSVdT/bruXf5ClBh8ZYXRmD4krmjKrXhEvwMg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "84c256e42600cb0fdf25763b48d28df2f25a0c8b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1744536153,
+        "narHash": "sha256-awS2zRgF4uTwrOKwwiJcByDzDOdo3Q1rPZbiHQg/N38=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "18dd725c29603f582cf1900e0d25f9f1063dbf11",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "android": "android",
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1763347184,
+        "narHash": "sha256-6QH8hpCYJxifvyHEYg+Da0BotUn03BwLIvYo3JAxuqQ=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "08895cce80433978d5bfd668efa41c5e24578cbd",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,49 @@
+{
+  description = "Delta Chat for Android";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    flake-utils.url = "github:numtide/flake-utils";
+    android.url = "github:tadfisher/android-nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, rust-overlay, flake-utils, android }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs { inherit system overlays; };
+        android-sdk = android.sdk.${system} (sdkPkgs:
+          with sdkPkgs; [
+            build-tools-35-0-0
+            cmdline-tools-latest
+            platform-tools
+            platforms-android-36
+            ndk-27-2-12479018
+          ]);
+        rust-version = pkgs.lib.removeSuffix "\n"
+          (builtins.readFile ./scripts/rust-toolchain);
+      in
+      {
+        formatter = pkgs.nixpkgs-fmt;
+
+        devShells.default = pkgs.mkShell rec {
+          ANDROID_SDK_ROOT = "${android-sdk}/share/android-sdk";
+          ANDROID_NDK_ROOT =
+            "${android-sdk}/share/android-sdk/ndk/27.2.12479018";
+          GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${ANDROID_SDK_ROOT}/build-tools/35.0.0/aapt2";
+          buildInputs = [
+            android-sdk
+            pkgs.openjdk17
+            (pkgs.buildPackages.rust-bin.stable."${rust-version}".minimal.override {
+              targets = [
+                "armv7-linux-androideabi"
+                "aarch64-linux-android"
+                "i686-linux-android"
+                "x86_64-linux-android"
+              ];
+            })
+          ];
+        };
+      });
+}

google-services.json

@@ -0,0 +1,105 @@
+{
+  "project_info": {
+    "project_number": "922391085500",
+    "project_id": "delta-chat-fcm",
+    "storage_bucket": "delta-chat-fcm.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:922391085500:android:938fa7a685ce74ba3e2bb9",
+        "android_client_info": {
+          "package_name": "chat.delta"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyBYH8Iznh8btYX7g_udv_bu68VH30zzxho"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:922391085500:android:6f54e2c4e49405673e2bb9",
+        "android_client_info": {
+          "package_name": "com.github.arcanechat.beta"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyBYH8Iznh8btYX7g_udv_bu68VH30zzxho"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:922391085500:android:aff82fbc40c8172e3e2bb9",
+        "android_client_info": {
+          "package_name": "com.github.arcanechat"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyBYH8Iznh8btYX7g_udv_bu68VH30zzxho"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:922391085500:android:92b4cf12669cc2083e2bb9",
+        "android_client_info": {
+          "package_name": "chat.delta.lite"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyBYH8Iznh8btYX7g_udv_bu68VH30zzxho"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:922391085500:android:228a205b8aa2bacc3e2bb9",
+        "android_client_info": {
+          "package_name": "chat.delta.lite.beta"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyBYH8Iznh8btYX7g_udv_bu68VH30zzxho"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

gradle.properties

@@ -0,0 +1,5 @@
+android.defaults.buildfeatures.buildconfig=true
+android.enableJetifier=true
+android.nonTransitiveRClass=false
+android.useAndroidX=true
+org.gradle.jvmargs=-Xmx4608m

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionSha256Sum=20f1b1176237254a6fc204d8434196fa11a4cfb387567519c61556e8710aed78
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,244 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

jni/Android.mk

@@ -0,0 +1,36 @@
+JNI_DIR := $(call my-dir)
+LOCAL_PATH := $(call my-dir)
+
+# Include prebuilt rust
+
+include $(CLEAR_VARS)
+LOCAL_MODULE            := deltachat-core
+LOCAL_SRC_FILES         := $(TARGET_ARCH_ABI)/libdeltachat.a
+# The header files should be located in the following dir relative to jni/ dir
+LOCAL_EXPORT_C_INCLUDES := include/
+include $(PREBUILT_STATIC_LIBRARY)
+
+
+################################################################################
+# main shared library as used from Java (includes the static ones)
+################################################################################
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE     := native-utils
+
+LOCAL_C_INCLUDES := $(JNI_DIR)/utils/
+LOCAL_LDLIBS := -llog
+LOCAL_STATIC_LIBRARIES :=  deltachat-core
+
+# -Werror flag is important to catch incompatibilities between the JNI bindings and the core.
+# Otherwise passing a variable of different type such as char * instead of int
+# causes only a -Wint-conversion warning.
+LOCAL_CFLAGS 	:= -Werror -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast -DNULL=0 -DSOCKLEN_T=socklen_t -DLOCALE_NOT_USED -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64
+LOCAL_CFLAGS 	+= -Drestrict='' -D__EMX__ -DFIXED_POINT -DUSE_ALLOCA -DHAVE_LRINT -DHAVE_LRINTF -fno-math-errno
+LOCAL_CFLAGS 	+= -DANDROID_NDK -DDISABLE_IMPORTGL -fno-strict-aliasing -DAVOID_TABLES -DANDROID_TILE_BASED_DECODE -DANDROID_ARMV6_IDCT -ffast-math -D__STDC_CONSTANT_MACROS
+
+LOCAL_SRC_FILES := dc_wrapper.c
+LOCAL_LDFLAGS += -Wl,--build-id=none
+
+include $(BUILD_SHARED_LIBRARY)

jni/Application.mk

@@ -0,0 +1,8 @@
+APP_PLATFORM := android-21
+APP_ABI := armeabi-v7a arm64-v8a x86 x86_64
+APP_STL := none
+
+ifneq ($(NDK_DEBUG),1)
+APP_CFLAGS  += -Oz -flto=full -fno-unwind-tables -fno-exceptions -fno-asynchronous-unwind-tables -fomit-frame-pointer
+APP_LDFLAGS += -flto=full
+endif