[antipurist]

Lisps let you define macros. Racket lets you define languages.

https://docs.racket-lang.org/guide/languages.html

https://docs.racket-lang.org/guide/more-hash-lang.html

Example of a language-in-racket: https://github.com/soegaard/minipascal/tree/master

[e12e]

Not to mention arc/anarki (hn is/was written in arc - anarki comes with a "news" example app/forum):

https://github.com/arclanguage/anarki/tree/HEAD#readme

[CyberDildonics]

The worst possible programming scenario is usually being locked in to an internal hacked together proprietary language. I don't think trying to make a new language for every program is a good idea and is almost the polar opposite of what I would consider good programming.

[nequo]

It lets you create languages like Pie which is designed to teach others about dependent types:

https://thelittletyper.com/

[CyberDildonics]

That seems like an extreme niche use that isn't suited for general purpose programming.

[nequo]

Racket's main use case is pedagogy and PL research.

[behnamoh]

this is so cool! Pascal code without the parentheses.