disko + nix + home-manager. It feels like magic when the OS comes up from zero to exactly how you left it in two commands. From partition scheme and system configuration, to user configuration.
And it’s so easy to change out any system component to whatever you need or bring up a complex service with a little bit of nix config.
I don't need a declarative operating system for my home server... but it would be fun... (lemmy.world)