STEP 1: git clone <https-url-copied-from-github>
STEP 2: python -m virtualenv venv
STEP 3: activate venv
STEP 4: pip install -r requirements.txt
STEP 5: flask --app main_v1 run
miniflask_v2 (project root)
├── README.md (documentation)
├── main.py (entrypoint)
├── requirements.txt (dependency management)
├── venv
<home-url>/
<home-url>/card/0
<home-url>/card/1
<home-url>/card/2
<home-url>/card/3