{
  description = "C3D2 NixOS configurations";

  edition = 201909;

  outputs = { self, nixpkgs }: {

    nixosConfigurations.server7 = nixpkgs.lib.nixosSystem {
      modules = [ ./hosts/server7 ];
      system = "x86_64-linux";
    };

    nixosModules.c3d2 = import ./lib;

  };
}