[NODES] New node, goliath.

nixos/roles/gaming/steam.nix

@@ -0,0 +1,6 @@
+_: {
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+  };
+}

nixos/roles/gnome/gnome.nix

@@ -0,0 +1,37 @@
+{
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkForce;
+in {
+  services.xserver.enable = true;
+  services.xserver.displayManager.gdm.enable = true;
+  services.xserver.desktopManager.gnome.enable = true;
+  environment.gnome.excludePackages =
+    (with pkgs; [
+      gnome-photos
+      gnome-tour
+    ])
+    ++ (with pkgs.gnome; [
+      cheese # webcam tool
+      gnome-music
+      gedit # text editor
+      epiphany # web browser
+      geary # email reader
+      gnome-characters
+      tali # poker game
+      iagno # go game
+      hitori # sudoku game
+      atomix # puzzle game
+      yelp # Help view
+      gnome-contacts
+      gnome-initial-setup
+    ]);
+  programs.dconf.enable = true;
+  environment.systemPackages = with pkgs; [
+    gnome.gnome-tweaks
+    gnome-extension-manager
+  ];
+  services.gnome3.gnome-keyring.enable = mkForce false;
+}