Know of any good ones? I as all set to buy the nest protect. But turns out they are stupid and require cloud connectivity for any interoperation all all. No public API, no SDK, and basically useless.

Sad, the nest protect has a microphone, multiple networks, speaker, light, presence detection, alarm, smoke detector, etc.

I'd love to get the same hardware with a sane stack that will interoperate with my home not just today, but in 10 years as well.