new_contents: from appkit.app import App
  
  app = App()
  
  
  @app.route('/$')
  def root():
      return '<a href="app:///greeting/hello/world/">Welcome</a>'
  
  
  @app.route('/greeting/(.+)/(.+)/')
  def greeting(text1, text2):
      return text1 + ' ' + text2
  
  app.run()
  
subject: Add example application