Move some graphics bits into the graphics role.

nix/configuration/configuration.nix

@@ -136,9 +136,6 @@
     file
     usbutils # for lsusb
     pciutils # for lspci
-    mesa-demos # for glxgears TODO move to better role
-    vulkan-tools # for vkcube TODO move to better role
-    xorg.xeyes # to test which windows are using x11 TODO move to better role
     ripgrep
     strace
     ltrace

nix/configuration/roles/graphics/default.nix

@@ -8,5 +8,36 @@
 {
   imports = [ ];
 
-  hardware.graphics.enable = true;
+  options.me.graphicsCardType = lib.mkOption {
+    type = lib.types.nullOr (
+      lib.types.enum [
+        "amd"
+        "intel"
+        "nvidia"
+      ]
+    );
+    default = null;
+    example = "amd";
+    description = "What graphics card type is in the computer.";
+  };
+
+  options.me.graphical = lib.mkOption {
+    type = lib.types.bool;
+    default = false;
+    example = true;
+    description = "Whether we want to install graphical programs.";
+  };
+
+  config = (
+    lib.mkMerge [
+      (lib.mkIf config.me.graphical {
+        environment.systemPackages = with pkgs; [
+          mesa-demos # for glxgears
+          vulkan-tools # for vkcube
+          xorg.xeyes # to test which windows are using x11
+        ];
+        hardware.graphics.enable = true;
+      })
+    ]
+  );
 }

nix/configuration/roles/media/default.nix

@@ -21,26 +21,6 @@ in
 {
   imports = [ ];
 
-  options.me.graphicsCardType = lib.mkOption {
-    type = lib.types.nullOr (
-      lib.types.enum [
-        "amd"
-        "intel"
-        "nvidia"
-      ]
-    );
-    default = null;
-    example = "amd";
-    description = "What graphics card type is in the computer.";
-  };
-
-  options.me.graphical = lib.mkOption {
-    type = lib.types.bool;
-    default = false;
-    example = true;
-    description = "Whether we want to install graphical programs.";
-  };
-
   config = (
     lib.mkMerge [
       {