more refactoring with default.nix

modules/gaming/default.nix

@@ -1,5 +1,7 @@
 { config, ... }: {
 
+  imports = [ ./leagueoflegends.nix ./lutris.nix ./steam.nix ];
+
   config = {
     hardware.opengl = {
       enable = true;

modules/gaming/leagueoflegends.nix

@@ -1,9 +1,15 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
-{
-  imports = [ ./common.nix ./lutris.nix ];
+with lib;
+let cfg = config.modules.gaming.leagueoflegends;
 
-  config = {
+in {
+
+  options.modules.gaming.leagueoflegends = {
+    enable = mkEnableOption "leagueoflegends";
+  };
+
+  config = mkIf cfg.enable {
 
     # League of Legends anti-cheat
     boot.kernel.sysctl = { "abi.vsyscall32" = 0; };

modules/gaming/lutris.nix

@@ -1,9 +1,14 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
-{
+with lib;
+let cfg = config.modules.gaming.lutris;
 
-  imports = [ ./common.nix ];
+in {
 
-  config = { environment.systemPackages = with pkgs; [ lutris amdvlk wine ]; };
+  options.modules.gaming.lutris = { enable = mkEnableOption "lutris"; };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [ lutris amdvlk wine ];
+  };
 
 }

modules/gaming/steam.nix

@@ -1,8 +1,13 @@
-{ config, pkgs, ... }: {
+{ config, pkgs, lib, ... }:
 
-  imports = [ ./common.nix ];
+with lib;
+let cfg = config.modules.gaming.steam;
 
-  config = {
+in {
+
+  options.modules.gaming.steam = { enable = mkEnableOption "steam"; };
+
+  config = mkIf cfg.enable {
     hardware.steam-hardware.enable = true;
     environment.systemPackages = with pkgs; [ steam ];
   };

nixos/configuration.nix

@@ -9,7 +9,7 @@
     /etc/nixos/hardware-configuration.nix
     ../modules/system/timezone.nix
     ../modules/system/doas.nix
-    ../modules/gaming/steam.nix
+    ../modules/gaming
   ];
 
   nixpkgs.config.allowUnfree = true;