The author created a reference application called TapMap for using .NET and Couchbase Server, which is a Twitter-like app focused on beers. The app's basic idea is that users report finding certain brews at specific locations, with the reports stored in Couchbase Server. The code for TapMap is still alpha, but it demonstrates how to create a simple Repository of T for Couchbase using the .NET Client Library. The repository pattern provides standard CRUD methods and allows for inheritance and generics. The author also discusses how to handle model objects with an ID property and impose a "type" property on documents for view access. The TapMap application uses this repository pattern to store and retrieve user data, including username and password, in a way that ensures uniqueness and enforce data consistency.