Here, I implemented the examples from https://htmx.org/examples/ as a Flask app.
Most of the backend code is implemented using Blueprints and found in the blueprints directory.
For each example, there is a Python file in that directory, and a folder in the templates directory for the HTML.
Create the virtual environment:
python -m venv env
Activate the virtual environment (Windows):
.\env\Scripts\activate
Install the packages:
pip install -r requirements.txt
Activate the virtual environment (Windows):
.\env\Scripts\activate
Run the server (with auto reload and debugging):
python app.py --debug
The server will run on http://127.0.0.1:5000.