That was mostly the work (at least initially) of Jean-Marie Hullot

https://mjtsai.com/blog/2019/06/21/jean-marie-hullot-rip/

Which makes me wish for a site like to folklore.org for NeXT.

... and had several Lisp versions before the one at NeXT.

Yeah, I really wish that someone would recreate the Lisp versions for a currently available version of Lisp.

I'm about to break down and begin learning Swift and trying to use SwiftUI --- we'll have to see how it goes.

The Lisp versions had the advantage that they were all written for the same GUI - Macintosh. I copied ideas from the LeLisp paper for my Franz Lisp & GEM environment back then.

There are too many holes in current GUI support.

The Lisp that traditionally had the best bindings on the Macintosh, CCL, doesn't run natively on current models.

McCLIM needs backends for Windows and OSX to be considered portable.