{ config, lib, pkgs, ... }:

{
  ############################
  ## Display + Mesa Settings
  ############################

  # hardware.enableRedistributableFirmware = true;

  hardware.firmware = [
    pkgs.linux-firmware
    pkgs.firmwareLinuxNonfree
    # pkgs.firmwareLinuxStrict
    # pkgs.firmwareLinuxLatest
  ];

  # boot.kernelPackages = pkgs.linuxPackages_latest;

  boot.kernelParams = [
    "console=tty0"
    "efifb=off"
    "xe.force_probe=*"
    "nvidia-drm.modeset=1"
  ];

  hardware.graphics = {
    enable = true;

    extraPackages = with pkgs; [
      intel-media-driver     # Intel VAAPI
      vpl-gpu-rt             # oneVPL runtime
      vaapiIntel             # fallback
    ];
  };

  # Ensure Arc driver is available (usually auto-loaded)
  boot.kernelModules = [ "xe" ];
  boot.blacklistedKernelModules = [ "nouveau" ];

  ############################
  ## X / Wayland GPU Drivers
  ############################
  # Only specify NVIDIA. Intel Arc uses the modesetting driver automatically.
  services.xserver.videoDrivers = [ "nvidia" ];

  ############################
  ## NVIDIA Configuration
  ############################
  hardware.nvidia = {
    modesetting.enable = true;   # REQUIRED if any displays are on NVIDIA

    open = false;                # GTX 1070 → must be the proprietary driver
    nvidiaSettings = true;

    powerManagement.enable = false;
    powerManagement.finegrained = false;

    prime = {
      offload.enable = false;    # not a laptop, must be disabled
      sync.enable = false;
    };

    # Correct way to pick the driver
    package = config.boot.kernelPackages.nvidiaPackages.production;
  };

  # Remove → hardware.nvidia handles module packages
  # boot.extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];

  ############################
  ## User Access
  ############################
  users.users.andreas.extraGroups = [ "video" "render" ];
}