text: from flask import Flask, render_template
  
  app = Flask(__name__)
  
  @app.route("/")
  def jinja_intro():
      return render_template(
          "jinja_intro.html", name="Nathan Webb", template_name="Jinja2"
      )
  
  @app.route("/first")
  def hello_world():
      return render_template("first_page.html")
  
  @app.route("/second")
  def hello_world_fancy():
      return render_template("second_page.html")
  
  if __name__ == '__main__':
      app.run(debug=True, host='0.0.0.0')