feat(hardware): enable hardware transcoding support

common.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, pkgs-unstable, ... }:
 {
   # Bootloader.
   boot.loader.systemd-boot.enable = true;
@@ -221,6 +221,23 @@
     dockerSocket.enable = true;
   };
 
+  # enable VAAPI and intel QSV
+  # enable vaapi
+  nixpkgs.config.packageOverrides = pkgs: {
+    vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
+  };
+  hardware.opengl = { # hardware.graphics in unstable
+    enable = true;
+    extraPackages = with pkgs; [
+      intel-media-driver
+      intel-vaapi-driver
+      vaapiVdpau
+      intel-compute-runtime
+      pkgs-unstable.vpl-gpu-rt
+      intel-media-sdk
+    ];
+  };
+
   # enable hardware acceleration for qemu
   virtualisation.libvirtd.enable = true;
   programs.virt-manager.enable = true;

flake.nix

@@ -73,6 +73,9 @@
         stylix.nixosModules.stylix
         ./stylix.nix
       ];
+      specialArgs = {
+        pkgs-unstable = nixpkgs-unstable.legacyPackages.${system};
+      };
     };
     nixosConfigurations.t470 = nixpkgs.lib.nixosSystem {
       inherit system;
@@ -94,6 +97,9 @@
         nixos-06cb-009a-fingerprint-sensor.nixosModules.open-fprintd
         nixos-06cb-009a-fingerprint-sensor.nixosModules.python-validity
       ];
+      specialArgs = {
+        pkgs-unstable = nixpkgs-unstable.legacyPackages.${system};
+      };
     };
   };
 }