initial scaffold

README.md

@@ -1,2 +1,17 @@
 # slmm
-Dashboard for talking to RION SLM
+Standalone NL43 addon module (keep separate from the SFM/terra-view codebase).
+
+Run the addon API:
+```bash
+pip install -r requirements.txt
+uvicorn app.main:app --reload --port 8100
+```
+
+Endpoints:
+- `GET /health`
+- `GET /api/nl43/{unit_id}/config`
+- `PUT /api/nl43/{unit_id}/config`
+- `GET /api/nl43/{unit_id}/status`
+- `POST /api/nl43/{unit_id}/status`
+
+Use `app/services.py` to wire in the TCP connector and call `persist_snapshot` with parsed DOD/DRD data.