Flash with ESPHome? Not that I’m aware of (but would be nice to know)

I’m happy with the Shelly bulbs, they work without internet shenanigans and can do MQTT, etc…

I have used Pi Zeros and ESPresense for prsence detection… seem to work ok, but if you’re wanting to do room-level detection, (ie who’s where), then that seems to be really difficult to tune the sensitivity