{
  config,
  lib,
  pkgs,
  ...
}:

{
  options = {
    syncthing.devices = lib.mkOption {
      default = { };
      description = ''
        set syncthing devices
      '';
    };
    syncthing.folders = lib.mkOption {
      default = { };
      description = ''
        set syncthing folders
      '';
    };
  };

  config = {
    services = {
      syncthing = {
        enable = true;
        tray.enable = true;
        guiAddress = "0.0.0.0:8384";
        settings = {
          devices = config.syncthing.devices;
          folders = config.syncthing.folders;
        };
        overrideDevices = lib.mkIf (config.syncthing.devices == { }) false;
        overrideFolders = lib.mkIf (config.syncthing.folders == { }) false;
      };
    };
  };
}