code: function buildEmscripten(directory) {
      console.log("Build Emscripten");
      const emscriptenDirectory = path.join(directory, "emscripten");
      dependencyUtils.gitCloneOrPull(EMSCRIPTEN_GIT_URL, emscriptenDirectory);
      dependencyUtils.exec("git -C %s checkout incoming", emscriptenDirectory);
  
      return emscriptenDirectory;
  }
docs: TODO Switch to emsdk if web assembly backend is included