{ lib, pkgs, ... }: { # Intel graphics support for hardware transcoding hardware.graphics = { enable = true; extraPackages = with pkgs; [ intel-media-driver vpl-gpu-rt intel-compute-runtime ]; }; # Set VA-API driver to iHD (modern Intel driver for N100) environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; }; services.jellyfin = { enable = true; openFirewall = true; }; # Override systemd hardening for GPU access systemd.services.jellyfin = { serviceConfig = { PrivateUsers = lib.mkForce false; # Disable user namespacing - breaks GPU device access DeviceAllow = [ "/dev/dri/card0 rw" "/dev/dri/renderD128 rw" ]; SupplementaryGroups = [ "render" "video" ]; # Critical: Explicit group membership for GPU access }; environment = { LIBVA_DRIVER_NAME = "iHD"; # Ensure service sees this variable }; }; }