{ lib, pkgs, ... }:
with builtins // lib;

basePath:
rec {
  option = mkOption {
    type = fileType;
    default = {};
    description = "Files relative to ${basePath}";
  };

  type = types.attrsOf (types.submodule ({ name, config, ... }: {
    options = {
      enable = mkEnableOption name // { default = text != ""; };
      target = mkOption {
        type = types.str;
        default = name;
        apply = p: if basePath == "" || isPrefix basePath p then p else "${basePath}/${p}";
      };
      executable = mkOption {
        type = with types; nullOr bool;
        default = null;
      };
      source = mkOption {
        type = types.path;
      };
      text = mkOption {
        type = with types; nullOr lines;
        default = null;
      };
    };

    config = mkMerge [
      (mkIf (config.text != null) {
        source = mkDefault pkgs.writeTextFile {
          inherit name;
          inherit (config) text;
          executable = config.executable == true;
        };
      })
    ];
  }))
}