Sounds well thought out. Many seem to forget designing for replacing. In generall I think all these IoT systems will be a major headache as they age. My therm

Sounds well thought out. Many seem to forget designing for replacing. In generall I think all these IoT systems will be a major headache as they age. My thermostats on the radiators are 45 year old by now. That is kinda the expected service life we are used to.