possible fixes to hardware acceleration

modules/nixos/services/jellyfin.nix

@@ -34,6 +34,13 @@
       driSupport = true;
       extraPackages = [ pkgs.libva ];
     };
+    environment.systemPackages = [ pkgs.libva-utils ];
+    environment.variables = {
+      # VAAPI and VDPAU config for accelerated video.
+      # See https://wiki.archlinux.org/index.php/Hardware_video_acceleration
+      "VDPAU_DRIVER" = "radeonsi";
+      "LIBVA_DRIVER_NAME" = "radeonsi";
+    };
 
   };