I���ve taken a look at what would be needed to
support magma on pharo a few years ago. Chris always told us he uses it
professionally on squeak and has not enough capacity to keep up with
changes in pharo without having a customer/maintainer for it. Twice a year
or so someone asks about magma on pharo and takes a look. AFAIK there are
no real obstacles to a port, but magma uses a lot of deep implementation
specifics that will take an experienced smalltalker to deal with, and a lot
of mailing list archeology as pharo changed a lot since magma worked on
pharo last

Stephan