Libraries required: flask (installed by pip), sqlite3 (default in Mac)

Commands: All following commands are executed in the root path of the application.

Export variables:

export FLASK_APP=PetCare/run.py export FLASK_DEBUG=1

Initialize database (required if and only if the shcema is changed):

flask initdb

Run application:

flask run

Access database:

sqlite3 PetCare/PetCare.db