{
  lib,
  stdenvNoCC,
  namespace,
}:
let
  inherit (lib.trivial) importJSON;
  inherit (lib.${namespace}) selectVariant mkAllSources;

  versionSpec = importJSON ./version.json;
  selected = selectVariant versionSpec null null;
  vars = selected.variables or { };
  sources = mkAllSources selected;
in
stdenvNoCC.mkDerivation {
  # NOTE: this should be updated with linux_rpi
  pname = "raspberrypi-firmware";
  version = vars.version;

  src = sources.firmware;

  installPhase = ''
    mkdir -p $out/share/raspberrypi/
    mv boot "$out/share/raspberrypi/"
  '';

  dontConfigure = true;
  dontBuild = true;
  dontFixup = true;

  meta = with lib; {
    description = "Firmware for the Raspberry Pi board";
    homepage = "https://github.com/raspberrypi/firmware";
    license = licenses.unfreeRedistributableFirmware; # See https://github.com/raspberrypi/firmware/blob/master/boot/LICENCE.broadcom
    maintainers = with maintainers; [ dezgeg ];
    # Hash mismatch on source, mystery.
    # Maybe due to https://github.com/NixOS/nix/issues/847
    broken = stdenvNoCC.hostPlatform.isDarwin;
  };
}