templates/system/modules/ui/desktops/gnome.nix

# Enables the Gnome desktop environment.
{
  pkgs,
  config,
  lib,
  ...
}:
let
  cfg = config.aux.system.ui.desktops.gnome;
in
{
  options = {
    aux.system.ui.desktops.gnome.enable = lib.mkEnableOption (
      lib.mdDoc "Enables the Gnome Desktop Environment."
    );
  };

  config = lib.mkIf cfg.enable {
    aux.system.ui.desktops = {
      enable = true;
      displayManager = lib.mkOverride 500 "gdm";
    };

    # Enable Gnome
    services.xserver = {
      # Remove default packages that came with the install
      excludePackages = [ pkgs.xterm ];

      desktopManager.gnome.enable = lib.mkDefault true;
    };

    environment = {
      # Remove extraneous Gnome packages
      gnome.excludePackages = with pkgs.gnome; [
        gnome-software # Built-in software manager
        tali # poker game
        iagno # go game
        hitori # sudoku game
        atomix # puzzle game
      ];

      # Install additional quality-of-life packages
      systemPackages = with pkgs; [
        gnome.gnome-tweaks # Gnome tweak tool
        gnome.gnome-themes-extra # Additional themes
      ];
    };

    # Manually set askPassword to avoid a conflict with KDE
    programs.ssh.askPassword = "${pkgs.gnome.seahorse}/libexec/seahorse/ssh-askpass";

    # Gnome UI integration for KDE apps
    qt = {
      enable = true;
      platformTheme = "gnome";
      style = "adwaita-dark";
    };
  };
}