HalephantConnection pooling for PostgreSQL

A PostgreSQL connection pooler, proxy, and multiplexer.

Transaction-mode pooling

Multiplex many clients over fewer server connections with prepared statement support, SCRAM authentication, and LISTEN/NOTIFY.

Route read-only transactions to replicas automatically based on connection parameters, BEGIN READ ONLY, or session characteristics.

No runtime dependencies. TOML configuration with structured logging. Deploy as a static binary or container image.