Apps similar to Dramatiq include ØMQ, which is free and open source. Other options are Spooled Cloud, Celery: Distributed Task Queue and Django Action Triggers. In total there are four apps like Dramatiq for Windows, Linux, Mac and self-hosting.
ØMQ is a high-performance asynchronous messaging library aimed at use in scalable distributed or concurrent applications. It provides a message queue, but unlike message-oriented middleware, a ØMQ system can run without a dedicated message broker.
Spooled is a high-performance, multi-tenant job queue system designed for reliability, observability, and horizontal scalability.
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Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.
A Django library for asynchronously triggering actions in response to database changes. It supports integration with webhooks, message brokers, and can trigger other processes.
