backwards: Enable hardware acceleration

hosts/backwards/configuration.nix

@@ -24,12 +24,24 @@
     pulse.enable = true;
   };
 
+  hardware = {
+    graphics = {
+      enable = true;
+      extraPackages = [
+        pkgs.intel-media-driver
+        pkgs.libvdpau-va-gl
+      ];
+    };
+  };
+
   users.users.alex = {
     isNormalUser = true;
     description = "alex";
     extraGroups = [
       "networkmanager"
       "wheel"
+      "video"
+      "render"
     ];
     packages = [ ];
   };