A review of Nix/NixOS after using it on all my machines for three years. I'll cover what works, what doesn't, and why it's the first OS that's stuck with me.
You can manage multiple machines with a single Nix configuration git repository and modularize the configuration as much as you want. You can have a config with a desktop environment that you skip on servers, override individual variables for a specific host or do whatever you want. You can even remote deploy it all with a simple nixos-rebuild build --target-host "user@host" and it works across different architectures too (e.g. build on your fast x86 machine and deploy to a slow RaspberryPi).
You can manage multiple machines with a single Nix configuration git repository and modularize the configuration as much as you want. You can have a config with a desktop environment that you skip on servers, override individual variables for a specific host or do whatever you want. You can even remote deploy it all with a simple
nixos-rebuild build --target-host "user@host"and it works across different architectures too (e.g. build on your fast x86 machine and deploy to a slow RaspberryPi).