nix-darwin/modules/users/group.nix

{ name, lib, ... }:

{
  options = let
    inherit (lib) mkOption types;
  in {
    name = mkOption {
      type = types.str;
      default = name;
      description = ''
        The group's name. If undefined, the name of the attribute set
        will be used.
      '';
    };

    gid = mkOption {
      type = types.int;
      description = "The group's GID.";
    };

    members = mkOption {
      type = types.listOf types.str;
      default = [];
      description = "The group's members.";
    };

    description = mkOption {
      type = types.str;
      default = "";
      description = "The group's description.";
    };
  };
}