Nix is great. I setup a NixOS server on a RockPro64 as a web server and a Minecraft server, https://github.com/thebitstick/nixos-server I also setup a potential arm64 laptop setup in a future where I somehow don't want to use macOS, https://github.com/thebitstick/nixos-laptop and I setup my Mac with Nix Darwin and Home Manager https://github.com/thebitstick/nix-darwin