{
  pkgs,
  nixLib,
  nixpkgs,
  specialArgs,
  extraModules,
  deployPackage,
}: let
  hostnames = builtins.fromTOML (builtins.readFile ./host-names.toml);

  hosts = nixLib.mkByName {
    useShards = false;
    baseDirectory = ./by-name;
    fileName = "configuration.nix";
    finalizeFunction = name: value: value;
  };

  mkNixosConfiguration = _: value:
    nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      inherit specialArgs;
      modules =
        extraModules
        ++ [
          ../modules
          value
        ];
    };
  nixosConfigurations = builtins.mapAttrs mkNixosConfiguration hosts;

  mkDeploy = name: _: {
    hostname = hostnames."${name}";
    profiles.system = {
      user = "root";
      path = deployPackage.lib.activate.nixos nixosConfigurations."${name}";
    };
  };
  deploy = {nodes = builtins.mapAttrs mkDeploy hosts;};
in {
  inherit nixosConfigurations deploy;
}