home/packages/karabiner-driverkit.nix

{ lib
, stdenv
, fetchurl
, xar
, cpio
}: stdenv.mkDerivation rec {
  pname = "karabiner-driverkit";
  version = "6.0.0";

  src = fetchurl {
    url = "https://github.com/pqrs-org/Karabiner-DriverKit-VirtualHIDDevice/releases/download/v${version}/Karabiner-DriverKit-VirtualHIDDevice-${version}.pkg";
    sha256 = "sha256-S14c06v/L/PraLekzIroG6FQnV5dpx0cyJNb9ylB458=";
  };

  sourceRoot = ".";

  nativeBuildInputs = [ cpio xar ];

  unpackPhase = ''
    runHook preUnpack

    xar -xf $src
    zcat Payload | cpio -id

    runHook postUnpack
  '';

  installPhase = ''
    runHook preInstall

    mkdir -p $out
    cp -r Applications $out/
    cp -r Library $out/

    runHook postInstall
  '';

  meta = with lib; {
    description = "Virtual HID Device Driver for Karabiner-Elements";
    homepage = "https://github.com/pqrs-org/Karabiner-DriverKit-VirtualHIDDevice";
    platforms = platforms.darwin;
    license = licenses.unlicense;
  };
}