Honker: Postgres-Style Messaging for SQLite

Honker is a SQLite extension plus language bindings that brings Postgres NOTIFY/LISTEN semantics to SQLite. You get push-style event delivery with single-digit millisecond latency, durable work queues with retries and dead-letter handling, event streams with per-consumer offsets, and a leader-elected periodic task scheduler — all stored in your existing .db file with no external daemon or broker.

When to use this skill

• You want cross-process pub/sub without a message broker
• You need a background job queue with retries, priorities, and dead-letter
• You want event streams with per-consumer offset tracking (Kafka-like)
• You need transactional outbox — enqueue jobs/events atomically with business writes
• You want periodic/cron tasks with leader election
• Your application already uses SQLite and you don't want to add Postgres or Redis just for messaging