I was doing that for a while but stopped (it was a lot of trouble tracking all
the changes in MacOS and Max at the time; perhaps this is easier now).  I
won't be able to get to a Mac with Max until later this week, but if nobody
else can do it first I can give it a try.

It's a fun object - you can pretend to be using Max but do the heavy lifting
in Pd - you can use GEM, etc., too.)