Atomic‑Queue is a Node.js library that provides a crash‑resilient job queue with persistent state stored on disk, allowing processing to resume after a restart. It exposes a writable stream interface where items are written into the queue and processed by a user‑supplied worker function, supporting configurable concurrency via an internal worker pool. The package is aimed at developers who need reliable background processing in server‑side JavaScript applications, especially where unexpected crashes must not lose queued work.