Ask HN: AI revived my durable delay queue project. Is it worth building on?
Most backends eventually need to do something once at a specific time. Revoke a trial after 30 days. Expire an offer. Retry a payment in 30 minutes. A few months ago I was consulting for a logistics platform. Their freight bidding workflow had a lot of timed steps. Every minute a cron queries all pending records and pushes them into Kafka. It worked. But it taxes the VM, DB, and message bus...