If you're looking to self-host, nextcloud is the way go. But if you're just looking for a drive alternative, there's plenty of simpler alternatives, like proton or kdrive.

I visited Phoenix a while ago and I was genuinely surprised by the small amount of houses with rooftop solar. It would truly be a perfect match: lots of sun and lots of air conditioning. But then again, capitalism makes it all so much more complicated.

You can always use firefox's profiles to manage different profiles and the "profile switcher for Firefox" extension. 2 clicks to change profile that way.