add gnome to thinkpad

hosts/nixos/thinkpad/home.nix

@@ -9,8 +9,24 @@
     ../home-default.nix
     ../../../modules/syncthing.nix
     ../../../modules/tex.nix
+    ../../../modules/gnome.nix
+    ../../../modules/firefox.nix
   ];
 
-  # Any ThinkPad-specific home configurations can be added here
+  # Enable GNOME configuration
-  # For example, laptop-specific aliases or scripts
+  programs.gnome-custom = {
+    enable = true;
+  };
+
+  # Enable Firefox browser
+  programs.firefox-custom = {
+    enable = true;
+    package = pkgs.firefox;
+  };
+
+  # ThinkPad-specific applications
+  home.packages = with pkgs; [
+    obsidian
+    keepassxc
+  ];
 }

hosts/nixos/thinkpad/system.nix

@@ -114,6 +114,44 @@
     jack.enable = true;
   };
 
+  # GNOME Desktop Environment
+  services.xserver = {
+    enable = true;
+    displayManager.gdm.enable = true;
+    desktopManager.gnome.enable = true;
+
+    # Keyboard layout
+    xkb = {
+      layout = "us";
+      options = "";
+    };
+  };
+
+  # Exclude unwanted GNOME default packages
+  environment.gnome.excludePackages = with pkgs; [
+    gnome-tour
+    epiphany  # GNOME web browser
+    geary     # GNOME email client
+    gnome-music
+    gnome-photos
+    gnome-maps
+    gnome-weather
+    gnome-contacts
+    gnome-clocks
+    simple-scan
+    totem     # video player
+    yelp      # help viewer
+  ];
+
+  # XDG portal for proper desktop integration
+  xdg.portal = {
+    enable = true;
+    extraPortals = with pkgs; [
+      xdg-desktop-portal-gnome
+      xdg-desktop-portal-gtk
+    ];
+  };
+
   # Touchpad configuration
   services.libinput = {
     enable = true;

modules/gnome.nix

@@ -0,0 +1,109 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.gnome-custom;
+in
+
+{
+  options.programs.gnome-custom = {
+    enable = mkEnableOption "GNOME desktop environment configuration";
+  };
+
+  config = mkIf cfg.enable {
+    # GNOME configuration via dconf
+    dconf.settings = {
+      # Interface settings
+      "org/gnome/desktop/interface" = {
+        color-scheme = "prefer-dark";
+        gtk-theme = "Adwaita-dark";
+      };
+
+      # Input sources - US English
+      "org/gnome/desktop/input-sources" = {
+        sources = [ (mkTuple [ "xkb" "us" ]) ];
+        xkb-options = [ "" ];
+      };
+
+      # Favorite applications in dash
+      "org/gnome/shell" = {
+        favorite-apps = [
+          "org.gnome.Nautilus.desktop"
+          "firefox.desktop"
+          "obsidian.desktop"
+          "org.gnome.Console.desktop"
+          "org.keepassxc.KeePassXC.desktop"
+        ];
+      };
+
+      # GNOME Terminal configuration with Gruvbox Dark theme (matching ghostty)
+      "org/gnome/terminal/legacy" = {
+        schema-version = mkUint32 3;
+        default-show-menubar = false;
+        theme-variant = "dark";
+      };
+
+      # Default terminal profile
+      "org/gnome/terminal/legacy/profiles:" = {
+        default = "b1dcc9dd-5262-4d8d-a863-c897e6d979b9";
+        list = [ "b1dcc9dd-5262-4d8d-a863-c897e6d979b9" ];
+      };
+
+      # Terminal profile with Gruvbox Dark colors (matching ghostty config)
+      "org/gnome/terminal/legacy/profiles:/:b1dcc9dd-5262-4d8d-a863-c897e6d979b9" = {
+        visible-name = "Default";
+
+        # Font settings - matching ghostty
+        use-system-font = false;
+        font = "JetBrainsMono Nerd Font Mono 14";
+
+        # Colors - Gruvbox Dark theme matching ghostty
+        use-theme-colors = false;
+        background-color = "rgb(20,25,31)";  # #14191f from ghostty
+        foreground-color = "rgb(235,219,178)";  # Gruvbox fg
+
+        # Palette colors (Gruvbox Dark)
+        palette = [
+          "rgb(40,40,40)"      # black
+          "rgb(204,36,29)"     # red
+          "rgb(152,151,26)"    # green
+          "rgb(215,153,33)"    # yellow
+          "rgb(69,133,136)"    # blue
+          "rgb(177,98,134)"    # magenta
+          "rgb(104,157,106)"   # cyan
+          "rgb(168,153,132)"   # white
+          "rgb(146,131,116)"   # bright black
+          "rgb(251,73,52)"     # bright red
+          "rgb(184,187,38)"    # bright green
+          "rgb(250,189,47)"    # bright yellow
+          "rgb(131,165,152)"   # bright blue
+          "rgb(211,134,155)"   # bright magenta
+          "rgb(142,192,124)"   # bright cyan
+          "rgb(235,219,178)"   # bright white
+        ];
+
+        # Cursor settings - matching ghostty
+        cursor-blink-mode = "off";
+        cursor-shape = "block";
+
+        # Scrollback
+        scrollback-lines = 10000;
+
+        # Bell
+        audible-bell = false;
+
+        # Other preferences
+        use-transparent-background = false;
+        default-size-columns = 160;
+        default-size-rows = 40;
+      };
+
+      # Disable GNOME Software auto-updates
+      "org/gnome/software" = {
+        download-updates = false;
+        download-updates-notify = false;
+      };
+    };
+  };
+}