[abcd_f]

Congrats, this is an interesting project and props for doing it all on your own! I thought our kind has gone all but extinct these days :)

That said, here's a problem from just watching the video - all the focus on the design of the device assumes that it should be on a display. That's the domain of the home automation market for passionate amateurs - "Look, look, I automated my door!" A proper installation is always discrete and does not clash with existing interior design of the space. It would be something that blends in easily and, ideally, paintable over. Definitely not a computer-mouse like puck that just screams "look at me!". Your whole point of this being "technology that is not worth hiding" is way off for practical applications. I realize that you probably trying to pull Nest here, but this is an utilitarian non-interactive device, it has no business being visible in my space. I would strongly suggest adding an "OEM" model that is just a flat white box.