For example for MongoClient, we exported a type that for now is just an alias https://github.com/doubleloop-io/effect-mongodb/blob/3fa084b236a51de1cb52b9ed3a426b6d904f3d38/packages/effect-mongodb/src/MongoClient.ts#L12 It just seems a bit odd to use the Db from mongodb compared to the rest of the library