@kazani: Neruppu turns Android into air-gapped physical monitoring system

Neruppu, whose name is Tamil for fire, is an Android app that turns a device into a physical monitoring system, redesigned from scratch from the earlier "Haven" app. It uses the camera, microphone and motion sensors together, with CameraX capturing photos when movement is detected and the microphone recording audio clips when sudden noise occurs. Alerts can be sent to any device over the Matrix or Telegram protocols, which are configurable in settings. The project describes its architecture as strictly offline-first with encrypted configuration storage.