I suspect that heirloom troff is what you want, but if you’re targeting the browser, there’s also Scribble/Pollen? http://n-t-roff.github.io/heirloom/doctools.

I suspect that heirloom troff is what you want, but if you’re targeting the browser, there’s also Scribble/Pollen? http://n-t-roff.github.io/heirloom/doctools.html http://n-t-roff.github.io/heirloom/doctools.html https://docs.racket-lang.org/pollen/ https://docs.racket-lang.org/pollen/