README.md

August 4, 2026 · View on GitHub

Security shouldn't require an installer, a subscription, and a stranger's server. It should just be your phone, watching.

Build Status License: GPL-3.0-or-later

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You travel. You check into a hotel. You leave your room for six hours. When you get back, you have exactly one question: Did anyone come in while I was gone? Not "here's 6 hours of raw footage, go find it yourself." Just: yes, or no — and if yes, here's the proof.

You can't bolt a CCTV camera to a hotel wall. You shouldn't have to. Your phone already has a camera, a microphone, and a brain. Neruppu just points them at the problem. It turns an old Android phone into something smarter than a camera. It pays attention.

  • Sees. A motion sensor triggers the camera the instant something moves.
  • Hears. Real-time microphone tracking catches sudden noise and records it.
  • Tells you. Now. Alerts land on your other devices instantly, over Telegram or Matrix — your choice, no middleman required.
  • And more. This is a starting point, not a finish line.

You can try Neruppu immediately by downloading the latest .apk from the Releases tab. Simply install the app on your Android device and start guarding your environment.

License

Neruppu is licensed under the GNU General Public License v3.0 or later (GPL-3.0-or-later).

This license grants you the freedom to use, modify, and distribute the software — including for commercial purposes — as long as you keep any derivative works open-source under the same license.

Copyright (C) 2026 thamizh-root

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.

See LICENSE for the full legal text.