Huge step in this update. I successfully integrated Firebase to handle user authentication and real-time database management. Students can now create accounts. Their custom study playlists will instantly sync to the cloud making their reading profiles accessible across any device without losing the bookmark, using local-storage speed I built earlier.. I didn’t stop at personal data. To build a learning experience I created deep linking allowing users to generate and share direct links to specific textbooks with a single click. Finally I added a real-time Community Chat widget by Firestores. Now authenticated students worldwide can instantly message each other share study tips. Drop book links in a persistent slide-out lounge.