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

{
  options = {
    apps.sync = {
      kde-connect = {
        enable = lib.mkEnableOption "enable kde-connect";
      };
      syncthing = {
        enable = lib.mkEnableOption "enable syncthing";
        devices = lib.mkOption {
          default = { };
          description = ''
            set syncthing devices
          '';
        };
        folders = lib.mkOption {
          default = { };
          description = ''
            set syncthing folders
          '';
        };
      };
    };
  };
  config = {
    programs = {
      kdeconnect = lib.mkIf config.apps.sync.kde-connect.enable {
        enable = true;
      };
    };
    services = {
      syncthing = lib.mkIf config.apps.sync.syncthing.enable {
        enable = true;
        tray.enable = true;
        guiAddress = "0.0.0.0:8384";
        settings = {
          devices = config.apps.sync.syncthing.devices;
          folders = config.apps.sync.syncthing.folders;
        };
        overrideDevices = lib.mkIf (config.apps.sync.syncthing.devices == { }) false;
        overrideFolders = lib.mkIf (config.apps.sync.syncthing.folders == { }) false;
      };
    };
  };
}