nixos-config/profiles/hardware.nix

{ pkgs, config, ... }:
with config.deviceSpecific; {
  hardware.cpu.${devInfo.cpu.vendor}.updateMicrocode = true;
  hardware.enableRedistributableFirmware = true;

  hardware.graphics =  {
    enable = true;
    enable32Bit = true;
    extraPackages = if devInfo.gpu.vendor == "intel" then [
      pkgs.intel-media-driver
      pkgs.intel-vaapi-driver
      pkgs.libvdpau-va-gl
    ] else if devInfo.gpu.vendor == "amd" then [
      pkgs.rocmPackages.clr.icd
    ] else [ ];
  };

  environment.sessionVariables = if (devInfo.gpu.vendor == "intel") then {
    GST_VAAPI_ALL_DRIVERS = "1";
    LIBVA_DRIVER_NAME = "iHD";
    VDPAU_DRIVER = "va_gl";
  } else if (devInfo.gpu.vendor == "amd") then {
    AMD_VULKAN_ICD = "RADV";
  } else {};

  boot.initrd.kernelModules = if devInfo.gpu.vendor == "amd" then [
    "amdgpu"
  ] else if devInfo.gpu.vendor == "intel" then [
    "i915"
  ] else [ ];
}