[kragen]

> it's not something that you will be able to understand and use right away.

I think it took me an hour or three to get some benchmarking programs running when I first encountered it, but that was mostly because I was using the documentation for the wrong major version. So I don't think it's such a big hassle. I definitely continued to learn important things about it for months, though.

It's definitely not a message queuing system like RabbitMQ, though. It's something much simpler and more general.