{ stdenvNoCC, fetchFromGitHub, unstableGitUpdater, lib }:
stdenvNoCC.mkDerivation {
  pname = "qmk_firmware";
  version = "unstable";

  src = fetchFromGitHub {
    owner = "qmk";
    repo = "qmk_firmware";
    fetchSubmodules = true;
    rev = "608bcf0";
    hash = "sha256-vYKrcaLIq194Q+OgcawwrwZonxySBAEQF4CTD7dYUtI=";
  };

  phases = [ "installPhase" ];

  installPhase = ''
    cp -r --no-preserve=mode $src $out
  '';

  passthru.updateScript = unstableGitUpdater {};

  meta = with lib; {
    homepage = "https://github.com/qmk/qmk_firmware";
    license = licenses.gpl2;
  };
}