Code I use to start a Flask-SQLAlchemy app. Adapted from cookiecutter-flask.
The most useful additions are found within app/database.py, which features numerous methods to abstract SQLAlchemy operations.
Requires creation of a local .env file with Flask-SQLAlchemy configuration settings.
Install requirements in a Python venv using pip install -r requirements.txt.
Read Flask-SQLAlchemy docs to learn more about usage.