If you're already running MongoDB and you reach for ASP.NET Core Identity, the official story points you at Entity Framework Core. That's a fine answer if you have a relational database. If you don't, you end up bolting a second data access stack onto an app that has exactly one store. You don't need it. AspNetCoreIdentity.MongoDriver is a store provider that talks to Mongo through the official MongoDB.Driver directly — no EF Core, no SQL, no second persistence model. It implements t...