{ 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=*"
    "module_blacklist=nouveau,nvidia,nvidia_drm,nvidia_modeset,nvidia_uvm"
  ];

  environment.variables.VK_ICD_FILENAMES = "/run/opengl-driver/share/vulkan/icd.d/intel_icd.x86_64.json";
  hardware.intel-gpu-tools.enable = true;
  hardware.graphics = {
    enable = true;
    enable32Bit = true;

    extraPackages = with pkgs; [
      intel-media-driver     # Intel VAAPI
      vpl-gpu-rt             # oneVPL runtime
      intel-vaapi-driver     # fallback
      intel-compute-runtime # OpenCL/Level Zero
    ];
  };

  # Ensure Arc driver is available (usually auto-loaded)
  boot.kernelModules = [ "xe" "i915" ];
  # Blacklist everything for nvidia
  boot.blacklistedKernelModules = [
    "nouveau"
    "nvidia"
    "nvidia_drm"
    "nvidia_modeset"
    "nvidia_uvm"
  ];

  environment.variables = {
    KWIN_DRM_DEVICES = "/dev/dri/card0";
  };



  ############################
  ## X / Wayland GPU Drivers
  ############################
  
  # Enable modesetting driver for X11 (required for Intel Xe)
  services.xserver.videoDrivers = [ 
    "modesetting"
    #"intel"
  ];

  services.xserver.enable = true;
  services.xserver.autorun = false;
  services.xserver.displayManager.startx.enable = true;

  # Xorg configuration for Intel Arc Battlemage (xe driver)
  # Based on: https://www.reddit.com/r/crtgaming/comments/1knom2t/guide_intel_arc_b580_arch_linux_xorg/
  # Intel Arc B-series at PCI 0000:03:00.0
  #services.xserver.deviceSection = ''
  #  Option "AccelMethod" "glamor"
  #  BusID "PCI:3:0:0"
  #'';

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