5.12 merge window, part 2

5.12 merge window, part 2

> idmapped mounts will be used in the
> implementation of portable home directories in
> systemd-homed.service(8) where they allow users to move their home
> directory to an external storage device and use it on multiple
> computers where they are assigned different uids and gids. This
> effectively makes it possible to assign random uids and gids at
> login time.

I can already see the consternation this will cause with various folks... "Random UID? WTF??!?"
I'm not sure how systems will adapt to such a situation, but (once the bugs are ironed out) I am certain this will aid security, at least slightly.