{ inputs, self, ... }: {
  flake.nixosModules.global = { pkgs, config, lib, ... }: {
    options.helpers = {
      typeOf = lib.mkOption {
        type = lib.types.functionTo lib.types.str;
        default = value: (
          if builtins.isAttrs value then "attrs" else (
            if builtins.isBool value then "bool" else (
              if builtins.isFloat value then "float" else (
                if builtins.isFunction value then "function" else (
                  if builtins.isInt value then "int" else (
                    if builtins.isList value then "list" else (
                      if builtins.isPath value then "path" else (
                        if builtins.isString value then "str" else ""
                      )
                    )
                  )
                )
              )
            )
          )
        );
        readOnly = true;
      };

      attrByStrPath = lib.mkOption {
        default = strPath: set:
          lib.attrsets.attrByPath (lib.strings.splitString "." strPath) null set;
        readOnly = true;
      };
    };
  };

  flake.homeModules.global = { pkgs, config, lib, ... }: {
    options.helpers = {
      mkSymlinkActivationScript = lib.mkOption {
        type = lib.types.functionTo lib.types.str;
        default = {target, source, isDir ? false}: ''
          if [ ${if isDir then "-d" else "-f"} /home/grey/${target} ]; then
            rm${if isDir then " -rf" else ""} /home/grey/${target}
          fi
          ln -s ${config.info.rootPath}/${source} /home/grey/${target}
        '';
        readOnly = true;
      };
    };
  };
}