-> How is the Quixote source hosted?  I gather from one of the e-mails
-> today it's using some other alternative to CVS?  Would that be an option
-> for a sandbox?  It would need near-unrestricted write permission, and
-> not too burdensome for the user to install client software.

I have a Darcs repository that I'd be happy to lend out.  It's on an
underutilized co-loc that's configured for virtual hosting, and it's
where I'm keeping all of my little projects:

        http://darcs.idyll.org/~t/projects/

As I understand it, it's relatively easy to set up something that lets
you submit signed patches via e-mail with darcs.

I can set up any hostname/e-mail combination that someone can reassign,
and I'm happy to give out a few accounts to admin-type people.

Oh, it runs FreeBSD.  Installing software is generally a breeze ;).

cheers,
--titus