MQTT Observer v1.16.0 (experimental)

- Up to 6 MQTT broker slots with built-in presets
- Presets: Analyzer, MeshMapper, MeshRank, Waev, Meshomatic, CascadiaMesh, TennMesh, NashMesh, and more
- JWT (Ed25519) and username/password authentication
- Automatic reconnection with exponential backoff
- After flashing, configure via serial console (115200 baud)

See setup guide for configuration instructions.