Update README.md

README.md

@@ -3,10 +3,8 @@ title: Conformer
 emoji: 🧬
 colorFrom: gray
 colorTo: blue
-sdk: gradio
-sdk_version: 5.49.1
-python_version: '3.12'
-app_file: app.py
+sdk: static
+app_file: index.html
 pinned: false
 license: mit
 short_description: BRAID molecular workbench with BRAIDBERTa
@@ -20,23 +18,35 @@ structures, compute descriptors, benchmark tokenisations, embed and compare
 encoders, export datasets.
 
 Nothing to install. Structure parsing, drawing, descriptors and fingerprints run
-in your browser via RDKit's WebAssembly build. BRAID conversion and the encoders
-run on this Space, on CPU.
+entirely in your browser via RDKit's WebAssembly build, so most of the workbench
+works with no server at all.
+
+BRAID conversion and the encoders need Python — `braids.codec` depends on RDKit
+APIs that the WebAssembly build does not expose — so those routes are served by
+a small FastAPI service:
+
+**https://braid-9wc2.onrender.com**
+
+The encoders run there from ONNX graphs exported from the checkpoints below,
+on CPU. That service is on a free instance and sleeps when idle: the first
+request after a quiet spell can take ~50 seconds to wake it. Everything
+browser-side stays instant meanwhile.
 
 - Code: https://github.com/AayushK-othari/braid
-- Model: https://huggingface.co/aakothari/BRAIDBERTa
+- Models: https://huggingface.co/aakothari/BRAIDBERTa
+  and https://huggingface.co/aakothari/DeepBERTa_zinc_base_100k_v4
+
+`GET /version` on the backend returns the git SHA, the pinned model revisions
+and the installed package versions behind whatever you are looking at.
 
-`GET /version` returns the git SHA, pinned model revisions and package versions
-behind whatever you are looking at.
+## Pointing at your own backend
 
-## A note on `sdk_version`
+The workbench's settings panel takes any endpoint. To run the converters and
+encoders locally instead — nothing leaves your machine:
 
-The Space builder appends `gradio==<sdk_version>` and `spaces==<version>` to the
-`pip install` line it runs against `requirements.txt`. Those two packages are
-therefore deliberately absent from `requirements.txt` — pinning them in both
-places yields two conflicting `==` constraints and the build fails to resolve.
+```bash
+pip install -r requirements-backend.txt
+python backend.py
+```
 
-`5.49.1` is not arbitrary. Gradio 6.x requires `huggingface-hub>=1.2`, which
-`transformers==4.49.0` forbids (`<1.0`). Gradio 5.x is the branch that coexists
-with the transformers 4 stack these results were produced on. Changing this
-number means changing the encoder stack, so re-validate locally before you do.
+then set the endpoint to `http://127.0.0.1:8000`.