Initially I did use fork a lot to allow each handler in its own “process” mainly because I wanted to isolate it as well in a container fashion. However the overhead became to much at the start when I just wanted it to work. Will be looking into it again!

I think some stuff will be happier in the "director" process and some happier in its own "worker" process - and fd passing is the magic trick that lets you accept() in the former and still do the bulk of the work in an appropriate instance of the latter.

I 100% get the 'overhead' part - but at some point hopefully you'll have enough other stuff already running that the 'fun' factor of enabling that will win out :D