{ pkgs
, config
, lib
, ...
}:
let
  inherit (lib) mkEnableOption mkIf;
  cfg = config.my-namespace.hardware.novidia;
in
{
  options.my-namespace.hardware.novidia = {
    enable = mkEnableOption "Bypass nvidia driver";
  };
  hardware.graphics = mkIf cfg.enable{
    enable = false;
    extraPackages = with pkgs; [ nvidia-vaapi-driver ];  
  };
  config = mkIf cfg.enable {
    # Enable OpenGL
    hardware.graphics = {
      enable = false;
      extraPackages = with pkgs; [ nvidia-vaapi-driver ];  
    };
    # Load nvidia driver for Xorg and Wayland
    # boot.extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];
    # boot.extraModulePackages = [ config.boot.kernelPackages.nvidia_x11_production ];
    boot.extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];

    boot.loader.systemd-boot.consoleMode = "max";

    boot.kernelParams = [
      #  "nvidia-drm.fbdev=1"
      #  "nvidia-drm.modeset=1"
      #  "nvidia.NVreg_PreserveVideoMemoryAllocations=1"
      #  "nomodeset"
      #  "nvidia_drm.modeset=1"
    ];
    boot.blacklistedKernelModules = [
      "i915"
      "nouveau"
    ];
    boot.extraModprobeConfig = ''
      blacklist nouveau
      options nouveau modeset=0
    '';
    # boot.extraModprobeConfig = "options nvidia " + lib.concatStringsSep " " [
    #   # nvidia assume that by default your CPU does not support PAT,
    #   # but this is effectively never the case in 2023
    #   "NVreg_UsePageAttributeTable=1"
    #   # This may be a noop, but it's somewhat uncertain
    #   "NVreg_EnablePCIeGen3=1"
    #   # This is sometimes needed for ddc/ci support, see
    #   # https://www.ddcutil.com/nvidia/
    #   #
    #   # Current monitor does not support it, but this is useful for
    #   # the future
    #   "NVreg_RegistryDwords=RMUseSwI2c=0x01;RMI2cSpeed=100"
    #   # When (if!) I get another nvidia GPU, check for resizeable bar
    #   # settings
    # ];  
    services.xserver.videoDrivers = [ "nvidia" ];
    boot.initrd.kernelModules = [
      # "nvidia" 
      # "nvidia-drm"
      # "nvidiafb"
      # "nvidia-modeset"
      # "nvidia-uvm"
      # "i2c-nvidia_gpu"
    ];
    #boot.initrd.kernelModules = [ "nvidia" ];

    hardware.enableAllFirmware = true;
    hardware.nvidia = {
      nvidiaPersistenced = true;
      # Modesetting is required.
      modesetting.enable = true;

      # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
      # Enable this if you have graphical corruption issues or application crashes after waking
      # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead 
      # of just the bare essentials.
      powerManagement.enable = true;

      # Fine-grained power management. Turns off GPU when not in use.
      # Experimental and only works on modern Nvidia GPUs (Turing or newer).
      powerManagement.finegrained = false;

      # Use the NVidia open source kernel module (not to be confused with the
      # independent third-party "nouveau" open source driver).
      # Support is limited to the Turing and later architectures. Full list of 
      # supported GPUs is at: 
      # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus 
      # Only available from driver 515.43.04+
      # Currently alpha-quality/buggy, so false is currently the recommended setting.
      open = false;

      # Enable the Nvidia settings menu,
      # accessible via `nvidia-settings`.
      nvidiaSettings = true;

      # Optionally, you may need to select the appropriate driver version for your specific GPU.
      package = config.boot.kernelPackages.nvidiaPackages.stable;
      # package = config.boot.kernelPackages.nvidiaPackages.production;

    };
    hardware.nvidia.prime = {
      offload = {
        enable = true;
        enableOffloadCmd = true;
      };
      # Make sure to use the correct Bus ID values for your system!
      # intelBusId = "PCI:0:2:0";
      nvidiaBusId = "PCI:01:0:0";
      amdgpuBusId = "PCI:50:0:0"; #For AMD GPU
    };

    users.users.andreas = {
      extraGroups = [ "video" "render" ];
    };
  };
}