backend · queue
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4 production projects and 1 rule set built with BullMQ.
Production projects
- Scheduling SaaS Classic Cal.com Splitting the tRPC-based web app from an independently versioned NestJS Platform API lets Cal.com serve both its own product and third-party developers from one monorepo, while Turborepo and per-integration app-store packages keep dozens of calendar/payment providers buildable and testable in isolation.
- Workflow Automation & AI Orchestration Hybrid Activepieces A queue-backed API/worker split on Fastify, PostgreSQL and Redis lets executions scale horizontally, while a typed pieces framework and isolated execution keep community integrations safe to load at runtime.
- LLM Observability AI-agent Langfuse Storage is split by workload: Postgres via Prisma for relational app state, ClickHouse for high-volume trace analytics, and Redis-backed BullMQ for async jobs, while a separate Rust Axum service handles latency-sensitive LLM proxying outside the Node runtime.
- Notification Infra Hybrid Novu Delivery concerns are split into separately deployable NestJS services (api, worker, ws, webhook, inbound-mail) sharing one Mongoose-based data-access library, so notification ingestion, queued processing, and realtime delivery can each be scaled and released on their own schedule inside a single Nx-managed workspace.
Often used with BullMQ
AGENTS.md rules and agent skills with BullMQ
Questions about BullMQ
How many production projects use BullMQ?
4 verified production projects in the STACK IT FAST directory use BullMQ, each with a full architecture breakdown.
What is BullMQ most often used with?
Across projects in the directory, BullMQ is most commonly paired with TypeScript, React, Redis.
Is there an AGENTS.md rule or Claude Code skill for BullMQ?
Yes — NestJS + PostgreSQL + Redis + BullMQ includes a full AGENTS.md, CLAUDE.md, Cursor .mdc rule set and an installable SKILL.md covering BullMQ.