This is seriously interesting. Thank you.

Could you share the implementation and architecture with us (minus all the PII, of course).

I have a network closet that runs 2 - 3 cat 6a cables (3 if there's an AP in that room, 2 if not) to each room in the house plus all the CCTV cameras oitside (direct to frigate in Home Assistant, with Coral TPU and all that good stuff), so it could be I don't have to run more wires (maybe the USB, sound like a solid idea).