I'd be interested to know how they handle remote controlling the HA instances. I spent a little bit of time trying to come up with a prototype hub running Home

I'd be interested to know how they handle remote controlling the HA instances. I spent a little bit of time trying to come up with a prototype hub running Home Assistant but kept coming back to the deployment and remote control problem - for instance the REST HTTP API would allow me to send commands in but then I'd need to do something like MQTT to get an event stream from the device. It ended up being too complicated for me to implement.