This is a replica of the popular drawing game, skribbl.io. The frontend is built using the Angular framework while the "backend" is built using Java. The two ends communicate with each other via listeners on a Google Firebase. This approach was used so that only a single server is needed to be hosted locally while players can play with each other via the Angular client.
The Java end requires a JSON file containing the secrets of a service account linked to an appropriate Firebase project. The project currently points to pogchamp-e27a7-firebase-adminsdk-n3y1a-42ae4a0df2.json, but that service account has long been deactivated. In the near future, I will modify this project to have an easier set up so that it can be easily used with any Firebase project.