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Similarly, check out Racket's Scribble mode (https://docs.racket-lang.org/scribble/).

"Scribble is a collection of tools for creating prose documents—papers, books, library documentation, etc.—in HTML or PDF (via Latex) form. More generally, Scribble helps you write programs that are rich in textual content, whether the content is prose to be typeset or any other form of text to be generated programmatically."

You type in text and mark up using @-tags that are defined in, and can also contain, the full Racket language. It's like LaTeX with a modern language (but without the tons of available packages).