{
  description = "My various NixOs configurations";

  inputs = {
    nixpkgs.url = "github:NixOs/nixpkgs/nixos-23.11";
  };

  outputs = { self, nixpkgs, ... }: 
    let nix-config-module =
        {
          nix.registry.nixpkgs.flake = nixpkgs;
          system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;
        };
    in {
      nixosConfigurations.cafe = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          nix-config-module
          ./host.nix
        ];
      };
    };
}