{
  description = "Home infra for lindenfelser.de (fileserver + gateway)";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
  };

  outputs = { self, nixpkgs, ... }:
  let
    system = "x86_64-linux";
    lib = nixpkgs.lib;
  in {
    nixosConfigurations = {
      fileserver = lib.nixosSystem {
        inherit system;
        modules = [
          ./hosts/fileserver/configuration.nix
        ];
      };

      gateway = lib.nixosSystem {
        inherit system;
        modules = [
          ./hosts/gateway/configuration.nix
        ];
      };

      k8s-server = lib.nixosSystem {
        inherit system;
        modules = [
          ./hosts/k8s-server/configuration.nix
        ];
      };
    };
  };
}