This is a great project. But it's only in the early planning phase so far, right? Or is there already some code on Github?
What we have is access to the source code for the D-machine emulator that Interlisp-D/Medley Common Lisp ran on in the 1980's.
The emulator was quite usable on 1980-s hardware - I worked for the company that sold it in the late 80s and early 90s.
We are still deciding stuff like what exact open source license to use, and how much priority to give to the two main goals:
* Historical - can it run old system dumps with important systems like NoteCards, LOOPS, LFG...
* Modernization - integration with host OS (clipboard, file system, networking), increasing memory space, adding Unicode