{
  inputs,
  lib,
  specialArgs,
  repositoryModules,

  # TODO refactor guests
  guestFiles,
  # TODO refactor registry
  registryAssembly,
}:
let
  mkHost =
    {
      root,
      hostName,
    }:
    lib.nixosSystem {
      inherit specialArgs;
      modules =
        guestFiles
        ++ [
          inputs.chaotic.nixosModules.default
          inputs.disko.nixosModules.disko
          inputs.sops-nix.nixosModules.sops
          inputs.stylix.nixosModules.stylix

          repositoryModules

          # TODO: refactor
          registryAssembly.module
          (root + "/${hostName}")

          {
            networking.hostName = hostName;
            modules.host.enable = true;
          }
        ];
    };
in
{
  mkHosts =
    { root }:
    let
      hostNames = lib.attrNames (lib.filterAttrs (_name: type: type == "directory") (builtins.readDir root));
    in
    lib.genAttrs hostNames (hostName: mkHost { inherit root hostName; });
}