A more typical Flask application has modularized code organized in a directory structure.
An example of such a Flask-User application is the Flask-User-starter-app, which available on Github:
https://github.com/lingthio/Flask-User-starter-app
It can serve as a great starter app for building your next Flask-User application.
Files of interest:
- app/startup/init_app.py
- app/models/user.py
- app/templates/flask_user/*.html
- app/templates/users/user_profile_page.html