this post was submitted on 07 Oct 2025
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Has anyone built out a self-hosted home alarm system? Something like ADT, but entirely self-hosted?

I'm wondering if this is possible with some combination of Frigate, Home Assistant, and something called Alarmo?

Or can a simple alarm system be created with just Frigate? I was thinking something simple like putting a camera inside my house when I leave. Then if any motion is detected inside of the house, activate a siren to scare potential burglars.

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[–] Ferrous@lemmy.ml 8 points 1 week ago

I use the frigate plugin in home assistant to make my lights do certain things when persons are detected where they shouldn't be. Once you've got frigate connected to home assistant, your possibilities are endless. With a few zigbee smart switches, you could start pulling off home alone style antics if you really wanted. Think: sprinklers, lights, noises, projectors, video, etc.... just dont forget to keep the legal aspect in mind.

I also have home assistant play a sort of alarm on my denon home theater stereo if a person is detected in frigate. It gets very loud.

I haven't heard of alarmo. It sounds like it fits my use case perfectly. Checking it out.