To run this project pull it down and run composer install, yarn install, and npm run prod.
Copy the .env.example to .env. Make sure you have an App ID. If you don't, run php artisan key:generate. Finally, add the local URL you are using to the .env file under the APP_URL variable.
You will want to populate the database by running php artisan migrate and php artisan db:seed. This will add a default admin user, which will store orphan shortened URLS.