A Scheme, or Racket, which has the most packages of everything not Common Lisp.
I'd suggest Chez Scheme (the Racket fork if you've got an ARM Mac), that is fast and has (real) threads.
I'd suggest Chez Scheme (the Racket fork if you've got an ARM Mac), that is fast and has (real) threads.
Or if you have a PowerPC Mac! https://leopard.sh/leopardsh/scripts/install-chezscheme-9.5....