immortal-queue is a library for build an asynchronous worker pool that processes action from a generic queue. You can use any thread-safe datatype with a push and pop like a TQueue or a persistent database table. The worker pool is configured by building an ImmortalQueue type, which describes how to push and pop from the queue as well as how to process items and handle errors. For a simple usage example using a TQueue, see the module documentation. For a more complex example that uses a persistent database as a queue, see Southern Exposure's website code.