assertions

modules/nixos/gaming/default.nix

@@ -7,11 +7,21 @@
 }:
 let
   cfg = config.${namespace}.gaming;
+  hasDesktop =
+    config.${namespace}.desktop.gnome.enable
+    || config.${namespace}.desktop.hyprland.enable
+    || config.${namespace}.desktop.cosmic.enable;
 in
 {
   imports = [ ./options.nix ];
 
   config = lib.mkIf cfg.enable {
+    assertions = [
+      {
+        assertion = hasDesktop;
+        message = "mjallen.gaming.enable requires a desktop environment (gnome, hyprland, or cosmic) to be enabled.";
+      }
+    ];
     # Network option required using sysctl to let Ubisoft Connect work as of 7-12-2023
     # Use mkDefault so jovian-nixos steam module (which sets this to `true`) wins.
     boot.kernel.sysctl."net.ipv4.tcp_mtu_probing" = lib.mkDefault 1;