Sadly http://pasterack.org is currently off-line
In the meantime why not try out the R16 "trick bot"!
It saves snippets of code, which can then be recalled and executed on user-provided input.
Many thanks to the creators:
to get started go to Racket Discord, select the #bots channel and type commands
-
!rkt help
for help -
!!instant-tshirt Racket
to make a t-shirt
e.g.
Docs at R16 -- Community-Driven Interactive Code Evaluation
!rkt eval
(require pict file/convertible racket/draw)
(~>
(pict->bitmap (standard-fish 250 100))
(convert 'png-bytes)
(make-attachment "fish.png" 'image/png))