Neruppu is a modern, offline-first physical security monitoring app that uses your device's sensors to detect and record security events. Features: • Camera motion detection (front and back cameras) • Microphone audio monitoring with automatic recording on noise bursts • Accelerometer movement/vibration detection • Ambient light change detection • Optional Matrix remote alerts • All data stored locally - no cloud required The app runs as a foreground service ensuring continuous monitoring while providing optional encrypted remote notifications via Matrix when security events are detected. Built with privacy and security in mind - all logs and media remain on your device unless you explicitly configure remote alerts.