To enhance the use of Couchbase in .NET applications, developers can leverage a variety of community-supported and officially supported Couchbase Extensions, such as those for caching, session management, dependency injection, and open telemetry. A focal point is the Couchbase.Extensions.Caching library, which implements the .NET Distributed Cache interface but defaults to using the _default scope and collection, without built-in options for specifying alternatives. To address this limitation, developers can create a custom implementation of the ICouchbaseCacheCollectionProvider interface, allowing them to specify desired scopes and collections for storing cached data. This is achieved by extending the library with additional code and configuring it in the application’s service setup, ensuring cached data is stored in specified locations rather than default ones. This flexibility is particularly useful for applications needing separate caching data storage without creating new buckets, as demonstrated by an example in the cruise industry.