A fully open source operating system geared towards self-hosting: https://github.com/malmoos/malmo

There are some good options out there (umbrel, zima, etc) but none that are fully open source or that have the sinplicity that I am gunning for with this one.

The focus is making it one-click to run your own "life backup" (immich, nextcloud) and also host your own open source SaaS alternatives.