There’s Yuno, CasaOS is ridiculously easy to setup, manage and maintain as well. There’s UnRaid (not free, but very good), Proxmox is extremely versatile.

I am currently running light services (caldav, carddav, PW manager, and some other lighter stuff) on an N150 mini PC, and have a hefty server for heavier services running on Proxmox.

Of course, I follow the 3-2-1 backup rule, but only for data I could never get again. Movies, Series, music, I never back up.