Mise à jour et ajout de proton-ge & steam

modules/system/nixos/games/proton.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+with lib;
+let
+  cfg = config.os.protonge;
+in
+{
+  options.os.protonge = {
+    enable = mkEnableOption "System pipewire service";
+  };
+  config = mkIf cfg.enable {
+
+    environment.systemPackages = with pkgs; [
+      umu-launcher
+    ];
+
+  };
+}