popd

  # Also copy it to out/$os_arch/ztunnel as that's whats used in the build
  echo "Copying '${2}' to ${TARGET_OUT_LINUX}/ztunnel"
  cp -f "${2}" "${TARGET_OUT_LINUX}/ztunnel"
}

function maybe_build_ztunnel() {
  # TODO detect git changes or something to avoid unnecessarily building
  # BUILD_ZTUNNEL=1 with no BUILD_ZTUNNEL_REPO tries to infer BUILD_ZTUNNEL_REPO