[Zope] What is exactly Gruf ?

[Gelin Patrick]

Hello,

I'm looking a way to create many privates groups. What I mean is that
each group is independent with its own private forum, documents,
members, calendar, etc. I would like a user have the ability to belong
one or more groups. I would like some users have the ability to register
others inside groups. Finally, I would like a user log in and after he
has the ability to choose a group to work with. (In fact I would like
something like groove)

I don't understand how Gruf works. Is it what I'm looking for?=20

Thanks.

Patrick Gelin