Mycroft was an open source alternative to Alexa.
Qwen3 and Gemma models are fairly capable, they are slow-ish (a few tokens per second) but will run.
You can start building with cheap hardware and simple models, and use something more capable once you're more confident on the use case.
It’s something I’m exploring - stay tuned :)
Unfortunately... yeah, they're all stuck in the useless Esper management still if you factory default them away from whatever weird factory test app they're in. Care to throw us a little bone? ;)