Touching on that version control and Nix are the same thing. Would be cool if they merged in some system.
Obligatory disclaimer, they're still in beta, but everyone's using them anyway. There's some ongoing work[1] before they're officially released.
[0] https://nixos.wiki/wiki/Flakes [1] https://www.youtube.com/watch?v=JE-vLFMTXxM