I don't think there is any difference between vac and what fossil uses,
just where it appears in the hierarchy (though maybe I am wrong).
Fossil adds a fixed upper layer of hierarchy
active
dump
<year>
<month><mday>
snap
<year>
<month><mday>
<hour><min>
The difficulty is how to convince fossil to install a score into its hierarchy
as though
its one that it created.
I am pretty sure this is doable, it just needs a rather deep understanding of
how fossil
works and when I tried to do it I discovered fossil is really rather complex.
-Steve
