{ config, pkgs, lib, ... }:
{
  environment.systemPackages = with pkgs; [
  ];

  # xdg-desktop-portal works by exposing a series of D-Bus interfaces
  # known as portals under a well-known name
  # (org.freedesktop.portal.Desktop) and object path
  # (/org/freedesktop/portal/desktop).
  # The portal interfaces include APIs for file access, opening URIs,
  # printing and others.
  xdg.portal = {
    enable = true;
    wlr.enable = true;
    # gtk portal needed to make gtk apps happy
    extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
  };

  # enable sway window manager
  programs.sway = {
    enable = true;
    wrapperFeatures.gtk = true;
  };

  services.dbus.enable = true;

  # kanshi systemd service
  systemd.user.services.kanshi = {
    description = "kanshi daemon";
    serviceConfig = {
      Type = "simple";
      ExecStart = ''${pkgs.kanshi}/bin/kanshi -c kanshi_config_file'';
    };
  };

  security.pam.services.swaylock.text = ''
    # PAM configuration file for the swaylock screen locker. By default, it includes
    # the 'login' configuration file (see /etc/pam.d/login)
    auth include login
  '';
}