Trying Flask Followed: *https://flask.palletsprojects.com/en/2.3.x/quickstart/ *https://www.youtube.com/watch?v=Z1RJmh_OqeA&list=PLh-WlvZK_vMXfsR4DW0wpaEoujkgqNfea&index=1 Runned also in Heroku.