Open source · 2026–present

Rheo — database-backed consumer groups

Embeddable Elixir/OTP library — searchable event log plus leases, ACK, retry, and dead letters on stores you already run.

  • Shipped Rheo 1.0 with Mnesia, Redis Streams, MongoDB, PostgreSQL/SQLite, and ETS backends, plus a Broadway producer.
  • At-least-once delivery, partition-local order, competing consumers, and independent groups on one stream — documented in a 17-part series.
Elixir

github hex series