git clone <repo-name>
cd <reponame>
python3 -m venv venv
source venv/bin/activate
pip install Flask
git reset --hard
git branch -a
git checkout <branch-name>
git add .
git commit -m "Put a comment here"
git fetch
git checkout origin/master
rm data.db
sqlite3 data.db < school-library-schema.sql
source venv/bin/activate
export FLASK_ENV=development
flask run