This was introduced four years after Commodore went bankrupt. Not even Lisp Machine hackers have the dedication of Amiga hackers.
(well, it's an FPGA, not an actual taped-out ASIC, but it's still faster than the Motorola 68060. it's a very cool product.)
contact them. It was written for paying customers. Unofficial name 'Portable Genera'.
If you can’t get it, it may as well not exist.
You might want to lookup what a real lisp machine is.