code: function handleRecipeFiles(folderPath) {
      if (handled[folderPath]) {
          return;
      }
      handled[folderPath] = true;
  
      handleRecipeFile(path.join(folderPath, 'tsconfig.json'));
      handleRecipeFiles(path.dirname(folderPath));
  }
docs: Walk up all folders and discover `tsconfig.json` files.