To add a point of reference. NetBSD/atari has been moribund
since NetBSD 3.0. There were at least three different bugs
preventing NetBSD 4.0 from installing, and once installed
isssues with IDE and SCSI would result in panics.
Recently there has been a resurgence of interest, including
one new NetBSD developer with commit access specifically
to work on NetBSD/atari, and a flurry of fixes from Izumi
Tsutsui.
It now looks like NetBSD/atari will return to a good place
with 5.0, and there is talk of supporting some of the
homebrew ethernet and USB interfaces people have managed
to cram into the side of the Falcon.
A 16Mhz 68030 is certainly within the VAXen performance
range, and if an Atari Falcon is still a viable platform
for people to play with NetBSD, why not the VAX?