Hybrid Backend
Local-first integration bus with a hash-chained audit trail
Overview
An integration node that turns business commands into signed events, commits them locally, and delivers them outward through a transactional outbox. Built for the case where the network is unreliable and the audit trail is not optional.
The problem
Most integration layers lose the plot when a downstream consumer is offline: the event is dropped, retried into a duplicate, or written somewhere nobody can later prove. Systems of record need a delivery guarantee and a provable history, not a webhook and hope.
What we built
Every command is accepted with an idempotency key, converted into a signed event, and committed atomically to a local store with a hash-chained audit record. Delivery is a separate concern handled by an outbox, so a consumer being down slows delivery instead of losing it.
Worth knowing
- Local-first: the node commits before it distributes, so it keeps working when the link does not.
- Ships with a management console for issuing and rotating scoped integration credentials.