What’s the definition of owning the home? I assume that even if 85% of the value is a bank loan, it still counts?

Easy enough to convert it to a pen plotter. You can 3d print the attachment first, then use it to have it move a pen around with G-code.

Have you looked into home assistant? There is a pretty solid and mature community around you managing all these different smart systems yourself.

That said, in not sure this is relevant, I’m too sleepy to read all of what you wrote. Apologies