Couchbase Lite 2.x is a versatile NoSQL embedded data store for mobile platforms, including iOS, Android, and .Net, that offers powerful features such as SQL-like queries and Full-Text-Search capabilities. In a new tutorial, users are guided through utilizing multiple local instances of Couchbase Lite within Xamarin apps, allowing for one shared instance with pre-loaded data and another for user-specific data. This setup enhances user experience by minimizing data-fetching latency and startup times. The tutorial extends a "User Profile" app by incorporating a prebuilt "University" database to demonstrate the use of the QueryBuilder API for querying local data and persisting user profiles. By the end, participants will have learned how to integrate prebuilt databases and execute queries in a local context, setting the stage for future enhancements that leverage more features of Couchbase Mobile.