I mentioned this in a thread a week or so ago, and I've now put up my
(rough) implementation, and some (even rougher) documentation. it can
be found at http://www.tfeb.org/lisp/hax.html#CONDUITS.
I will try to put up some of my other small lisp stuff there over the
while I have time over next few weeks, as it looks like I'm going to
be doing a whole load less Lisp after that.
--tim