> I suspect with something like s6-fdholder-daemon [1] could be used to orchestrate a similar process, systemd has the ability to hold fds for you. You need to

> I suspect with something like s6-fdholder-daemon [1] could be used to orchestrate a similar process, systemd has the ability to hold fds for you. You need to enable it for each service with http://www.freedesktop.org/software/systemd/man/systemd.service.html#FileDescriptorStoreMax= http://www.freedesktop.org/software/systemd/man/systemd.serv... and the service needs to know hot to actually do it.