Stuff related to PAI Forth for the Apple II
All material created by Prentice Associates, Inc. is released under MIT license in 2021 by Lloyd Prentice, owner of the company. Anything here not created by PAI is not so licensed.
Lloyd told me: "Virtuoso was our Forth development system—a bit clunky, but got the job done. Somewhere in the code are some graphic routines that could be of interest to Apple hobbyists."