add: gallium-nine

flake.nix

@@ -44,38 +44,45 @@
         copetch = inputs.copetch.packages.${system}.default;
       };
 
-    in {
+      mesaOverlay = final: prev: {
-    nixosConfigurations = {
+        mesa = prev.mesa.overrideAttrs (old: {
-      copland = nixpkgs.lib.nixosSystem {
+          mesonFlags = (old.mesonFlags or [ ]) ++ [ "-Dgallium-nine=true" ];
-        specialArgs = { 
+        });
-          inherit inputs system; 
+      };
-          zen-browser = inputs.zen-browser;
+
-          nix-cachyos-kernel = nix-cachyos-kernel;
+    in
+    {
+      nixosConfigurations = {
+        copland = nixpkgs.lib.nixosSystem {
+          specialArgs = {
+            inherit inputs system;
+            zen-browser = inputs.zen-browser;
+            nix-cachyos-kernel = nix-cachyos-kernel;
+          };
+
+          modules = [
+            { nixpkgs.hostPlatform = system; }
+            chaotic.nixosModules.default
+            home-manager.nixosModules.home-manager
+
+            {
+              nixpkgs.overlays = [ chaoticOverlay cachyosKernelOverlay copetchOverlay mesaOverlay ];
+              nixpkgs.config.allowUnfree = true;
+            }
+
+            {
+              home-manager = {
+                useGlobalPkgs = true;
+                useUserPackages = true;
+                extraSpecialArgs = { inherit inputs system; };
+                users.elars = import ./home;
+              };
+            }
+
+            ./machine.nix
+            ./nixos/default.nix
+          ];
         };
-
-        modules = [
-          { nixpkgs.hostPlatform = system; }
-          chaotic.nixosModules.default
-          home-manager.nixosModules.home-manager
-
-          {
-            nixpkgs.overlays = [ chaoticOverlay cachyosKernelOverlay ];
-            nixpkgs.config.allowUnfree = true;
-          }
-
-          {
-            home-manager = {
-              useGlobalPkgs = true;
-              useUserPackages = true;
-              extraSpecialArgs = { inherit inputs system; };
-              users.elars = import ./home;
-            };
-          }
-
-          ./machine.nix
-          ./nixos/default.nix
-        ];
       };
     };
-  };
 }