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

Source: https://farcaster.xyz/kazani/0x6a58e05e
Kiwi News: https://news.kiwistand.com/stories/kazani-Neruppu-turns-Android-into-air-gapped-physical-monitoring-system?index=0x6a095917b7b250bb2498170dbfc828bd5c0929d59d21a9deadf6f518bdfb52a432c374f6
Submitted by @kazani on 2026-05-17 UTC, 1 upvote, 0 comments

## Summary

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.

## Article

Neruppu

Neruppu (Tamil for Fire) is a modern, high-security Android application that turns your device into a sophisticated physical monitoring system. Built on the legacy of "Haven," Neruppu is redesigned from scratch using the latest Android technologies to provide an air-gapped, privacy-first security solution.

Key Features:

Intelligent Guarding: Monitor your environment using the camera, microphone, and motion sensors simultaneously.

Visual Evidence: High-speed motion analysis using CameraX captures photos when movement is detected.

Acoustic Bursts: Real-time microphone tracking automatically records audio clips when sudden noise occurs.

Matrix and telegram Alerts: Receive real-time alerts on any device using the Matrix or telegram protocol (configurable in settings).

Privacy First: Strictly offline-first architecture with encrypted configuration storage.

Smart Storage Management: Clear your security logs and physically wipe associated media files from storage with a single confirmation.

Unified UI/UX: A modern, Jetpack Compose interface with a consistent design language across all screens.

Persistent Monitoring: Robust Foreground Service ensures continuous protection even when the app is in the background.

https://github.com/thamizh-root/neruppu

https://t.me/kazanireads