{
  description = "NixOS definitions for our physical servers";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.05";
  };

  outputs = {
    self,
    nixpkgs,
    ...
  } @ attrs: {
    formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.alejandra;
    nixosConfigurations.jefke = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs = attrs;
      modules = [
        ./configuration.nix
      ];
    };
  };
}