Hi,

Years ago Jude Nelson announced that he was going to migrate his
production machine to using eventfs with libudev-compat. Once he was
satisfied that it worked as expected, he would begin packaging all of
vdev's components for devuan. But finally he left this eventfs
integration pending to do, or at least untracked on the project's Github.

As he explained in the mailing list, eventfs is a specialized userspace
filesystem that replaces the udev-to-libudev event multicast protocol,
which is currently based on netlink. Eventfs fulfills an equivalent
role, but it does so in a portable manner in userspace, and it abstracts
dealing with message multicast groups as dealing with files and
directories with a few extra rules.