The Glamorous Toolkit crew have been doing some amazing stuff in terms of having multiple heavily custom type-specialised inspectors, and while being ST based t

The Glamorous Toolkit crew have been doing some amazing stuff in terms of having multiple heavily custom type-specialised inspectors, and while being ST based they're much more GUI focused than REPL focused I think it's not unreasonable to say it's the same spirit, but ST style rather than Lisp style. (for those following along at home, Interlisp was a work of art and I cached a couple of the relevant manuals under https://trout.me.uk/lisp/ https://trout.me.uk/lisp/ so I didn't keep having to go find them yet again to re-read for inspiration)