Example app on how to work with flask and sqlite.
- python3 -m flask --app app.py run --debug (debug mode, with reload)
- https://www.w3schools.com/sql/sql_syntax.asp
- https://docs.python.org/3/library/sqlite3.html
- https://flask.palletsprojects.com/en/3.0.x/quickstart/
- https://flask.palletsprojects.com/en/3.0.x/tutorial/
- https://www.w3schools.com/bootstrap/bootstrap_get_started.asp
- https://getbootstrap.com/docs/4.0/examples/
- https://www.w3schools.com/howto/howto_css_login_form.asp
- https://developer.mozilla.org/en-US/docs/Learn/Forms/Sending_and_retrieving_form_data