Clone this repository to your machine. Navigate to the root (where package.json is) and do the following:
Install dependencies
npm install
Create .env file
touch .env
Add variables to .env
MONGODB_URI={mongodb uri for the database}
BACK_PORT=6969
SECRET={some string here}
TEST_MONGODB_URI={mongodb uri for tests}
start the backend
npm start
Now head to http://localhost:3000/ and you can play locally