Well, actually, there's only one question. I'm wondering if it's
possible to, instead of configuring Venti to take snapshots of
entire filesystems at a given interval, configure Venti to take
a snapshot of a single file and only when you tell it to
yourself.

Something like:

venti/snap /path/to/some/file

would be ideal. So, does this exist already, or do I need to
write this? :)

Off topic; there's a shoe store here in Deventer called
``venti'' and it has a HUGE metal thing that says ``venti'' on
the wall. I should take a picture sometime :).

--Devon