garage is a software project made for communal home hosting. Tech literates will talk about its S3 API but that’s the least interesting part: the most interesting is that it has been purposely built to be hosted on (actual) commodity hardware like second-hand nucs, running on flaky home power and internet and linked together through usual isps. Nodes may come up and down but the cluster withstands all of that.

Garage would be a pretty nice project to run a solar-powered mini-cluster. If sufficiently far from each other, you could even run without polluting batteries !