{
  povSelf,
  config,
  lib,
  pkgs,
  ...
}:
let
  inherit (lib) types;
  cfg = lib.getAttrFromPath povSelf config;

in
{

  options.enable = {
    type = types.bool;
    default = false;
  };

  config = lib.mkIf cfg.enable {
    security.pam.services.gtklock = { };

    services.systemd-lock-handler.enable = true;

    home-manager.sharedModules = [
      {
        systemd.user.services = {
          gtklock = lib.mkDefault {
            Unit.OnSuccess = [ "unlock.target" ];
            Unit.PartOf = [ "lock.target" ];
            Unit.After = [ "lock.target" ];
            Install.WantedBy = [ "lock.target" ];
            Service.ExecStart = lib.getExe pkgs.gtklock;
            Service.Restart = "on-failure";
            Service.RestartSec = 0;
          };
        };
      }
    ];
  };

}