BullMQ 5.16+ Job Schedulers Replace Cron for Node.js Recurring Tasks

BullMQ's Job Scheduler API (v5.16+) lets developers define cron or interval-based recurring jobs using Redis-backed queues, surviving restarts and scaling across replicas. The same workers handle both one-off and scheduled jobs with built-in retries and concurrency. A demo shows a fast heartbeat and daily cleanup cron using plain Node.js or NestJS.