racket

Modern programming language in the Lisp/Scheme family
https://racket-lang.org/ Formula was removed
Last version was
6.6

Recent formula history

Leandro Facchinetti minimal-racket: renamed from racket
Ephemera racket 6.6
Sondre Nilsen racket 6.5
Richard Primus racket: update caveats
Richard Primus racket 6.4

Formula code at GitHub