{
  pkgs,
  lib,
  ...
}:
{
  services.xserver.windowManager.xmonad = {
    enable = true;
    enableContribAndExtras = true;
  };

  services.xserver = {
    enable = true;
    autoRepeatDelay = 300;
    autoRepeatInterval = 40;
  };

  environment.systemPackages = [
    pkgs.pantheon.elementary-sound-theme
  ];
  services.xserver.displayManager.lightdm = {
    enable = true;
    background = "#000000";
    greeters.gtk = {
      iconTheme = {
        name = "Adwaita";
        package = pkgs.gnome-themes-extra;
      };
      theme = {
        name = "Adwaita";
        package = pkgs.gnome-themes-extra;
      };
      cursorTheme = {
        name = "Posy_Cursor_Black";
        package = pkgs.posy-cursors;
        size = 72;
      };
      extraConfig = ''
        gtk-sound-theme-name = elementary
      '';
    };
  };

  services.xscreensaver = {
    enable = true;
    hooks = {
      # Reset display setting on login
      "RUN" = ''
        ${lib.getExe pkgs.autorandr} --change --ignore-lid
      '';
    };
  };

  services.picom = {
    enable = true;
    # avoid tearing
    vSync = true;

    # buttery smooth
    fade = true;
    fadeDelta = 3;
    settings = {
      fade-exclude = [
        "name = 'Fcitx5 Input Window'"
        "class_g = 'fcitx'"
        "class_i = 'fcitx'"
      ];
    };
  };

  services.speechd.enable = false;
}