When you start background job, in the master process, you can collect $zchild with a pid of started process

and collect them in the logs, and then in the loop you can check $data(^$job(child)) if it's still running

that's the simplest approach

Implemented for Interoperability: it can check status, including items in it, restart, update, recover, and check for queues and errors.
There is also SQL Query executon

https://www.youtube.com/embed/EVzZnkjIvoM
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Looks like there is no one specific use case for server, and there are so many variants on how it can be implemented

Do you have something in mind, how would you use it?

Just thinking about the list of tools to add in server implementation