The types your own classes are written in terms of: the annotations Octavius reads off them, a multiplatform BigDecimal, the serializers that keep numeric precision and PostgreSQL's infinity intact through JSON, and the case converter both sides name things with. Kotlin Multiplatform, so that commonMain can carry them.

A PostgreSQL driver for Kotlin that speaks Wire Protocol v3.2 directly: types read from your catalog, COPY, LISTEN/NOTIFY, large objects and TLS. Blocking by design and pin-free on virtual threads.