update vulkan

modules/hardware/vulkan.nix

@@ -1,12 +1,35 @@
 { pkgs, ... }:
 
 {
-  hardware.cpu.intel.updateMicrocode = true;
   environment.systemPackages = with pkgs; [
     vulkan-tools
-    lib32Mesa
+    libglvnd  # modern GL dispatch
-    lib32VulkanIntel
+    lib32.libglvnd # 32-bit GL support
   ];
+
+  environment.systemPackages = with pkgs; [
+    # 32-bit graphics
+    lib32.libglvnd
+    lib32.glfw3
+    lib32.sdl2
+    lib32.zlib
+    lib32.pulseaudio
+    # Optional but useful
+    lib32.libXrandr
+    lib32.libXss
+    lib32.libXi
+    lib32.libXtst
+    lib32.libXrender
+  ];
+
+  # Enable multilib for 32-bit
+  nixpkgs.config = {
+    allowUnfree = true;
+    i686Support = true;
+  };
+
+  hardware.cpu.intel.updateMicrocode = true;
+  
   nixpkgs.config = {
     allowUnfree = true;
     packageOverrides = pkgs: {