Requires python and node.

1. pip install flask
2. cd client && npm install

1. In the client directory: npm start
2. In a separate terminal, in the root directory: python run.py
3. Go to http://localhost:3000/

1. In the client directory: npm run build
2. After the build finishes: In the root directory: python run.py
3. Go to http://localhost:5000/