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2023.8: Translated services, events, and wildcards!
(www.home-assistant.io)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
A year or two back, I think I looked for information on them, and found a few people who disassembled them..... but, the hardware was pretty custom and specific for the application.
That being said, One of these days, I'll take apart one of the ones I have laying around here, and see if it might be possible to solder a esp32 somewhere on the board, to take control over some of the functionality.