BaseKt data SPI: the DataSource interface with transport-neutral queries, cursor pagination, batched loading and transactions.

BaseKt server: install(BaseKt), a schema-driven REST API for Ktor with permissions, hooks and typed errors.

BaseKt in-memory DataSource, for tests, samples and prototypes.

BaseKt DataSource over Exposed/JDBC: Postgres, MySQL and H2.

BaseKt DataSource over Cloud Firestore: a collection per resource, document ids as record ids, transactions and aggregation counts.

BaseKt DataSource over MongoDB: collections per resource, ObjectId ids and references, transactions and indexes.