code: def create_app():
      
      app = App.create_app(__name__)
      app.configure('.configs.settings')
  
      # yes, I should use blueprints; but I don't really care for such a small
      # toy app
      @app.route('/config')
      def get_config():
          """Get the current configuration of the app."""
          return jsonify(app.config)
  
      @app.route('/put_config', methods=['PUT'])
      def put_config():
          """Add to the current configuration of the app.
  
          Takes any JSON body and adds all keys to the configs with the provided
          values.
          """
          data = request.json()
  
          for key, val in data.items():
              app.config[key] = val
  
          return jsonify({'message': 'Config updated!'})
  
      return app
docs: Create the standard app for ``fleaker_config`` and register the two
      routes required.