old_contents: from waitress import serve
  from samil import app
  
  # app.run(debug=True, host="0.0.0.0", port=8080)
  # serve(app, port=8080)
  serve(app)
  
  # test
new_contents: from waitress import serve
  from samil import app
  
  app.run(debug=True, host="0.0.0.0", port=80)
  # serve(app, port=8080)
  # serve(app)
  
  # test
  
subject: change runserver.py