Home Security Platform
A self-hosted home-security system rebuilt four times across a decade, from camera-to-cloud, through a full mobile + sensor stack, to a leaner Telegram-bot worker running on a Raspberry Pi today.
Full StackSaaSIoT2016–presentNDA
Personal
Developer
Team 1
Outcomes
- Four architecture iterations over a decade (2016 to today)
- Deliberate v3 → v4 simplification: full mobile + sensor stack to a Telegram-bot worker on a Raspberry Pi
- Hardware integration: GPIO, RFID, CO₂ sensor on Raspberry Pi
- Running today across three locations with zero cloud bills
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Overview
Solo, self-hosted home-security platform in its tenth year, rebuilt four times. v1 streamed camera footage to Google Drive. v2 added a full backend. v3 grew into a full mobile app with RFID access and a CO₂ sensor. v4 deliberately cut everything back to a Raspberry Pi running a Telegram-bot worker: camera capture + cloud upload, alerts and control via chat, no web UI, no mobile app, no cloud bills. Running today across three locations.
What I owned
- System architecture across all four versions
- NestJS backend (current stack) and prior backend versions
- Worker app on Raspberry Pi (v4)
- React Native mobile app (v3)
- Telegram bot for control and alerts (v4)
- Hardware integration via GPIO (RFID reader, CO₂ sensor)
Build context
LinksPrivate / NDAMore details available on request