As far as I can see in the firmware code it has Arduino under the hood. And the firmware itself doesn’t look that complicated. If I’m ever buying one I’d definitely rewriting the api client to my liking:)

Well, previous approach was a dead end in terms of functionality and platform support. I’d like to think of it as a prototype. BTW, the test suit was written in Python and had been left in touch to ensure the same behavior if the rework.