pdw-frankiel: add intel specific packages for video decoding

hosts/pdw-frankiel/configuration.nix

@@ -65,6 +65,10 @@ in
   };
 
   environment = {
+    sessionVariables = {
+      LIBVA_DRIVER_NAME = "iHD";
+    };
+
     systemPackages = with pkgs; [
       qimgv
       zathura

hosts/pdw-frankiel/hardware.nix

@@ -2,6 +2,7 @@
   config,
   lib,
   modulesPath,
+  pkgs,
   ...
 }:
 
@@ -65,5 +66,15 @@
   hardware = {
     bluetooth.enable = true;
     cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+    enableRedistributableFirmware = true;
+
+    graphics = {
+      enable = true;
+
+      extraPackages = with pkgs; [
+        intel-media-driver
+        vpl-gpu-rt
+      ];
+    };
   };
 }