Udev rules and the management of the plumbing layer

That makes sense.  Remnant's misgivings seem easily solvable...  afict, he just needs upstream
to make groups work for initramfs, and upstream sounds amenable to those changes.  That would
be most excellent.

I'll try not to let Marco d'Itri's "elegance" windmill-tilting skew my interpretation of SJR's
comments.  :)