nixos/modules/hardware/nvidia/default.nix

@@ -42,9 +42,12 @@ in {
         driSupport = true;
         driSupport32Bit = true;
       };
+
       nvidia = {
+        # Use the NVidia open source kernel module
         open = false;
         package = config.boot.kernelPackages.nvidiaPackages.stable;
+        # Modesetting is required.
         modesetting.enable = true;
         nvidiaSettings = cfg.gui-settings;
         powerManagement = {