In a way this is what notebooks are for Python and other languages. They mix documentation and code such that you can run that code and inspect the output. See for example the pytorch tutorials.

Yes, notebooks are a restrictive type of litterate programming, interactive and browser bound.

TeX was "proven" as a text/typography tool by the fact that the source code written in WEB (interleaving pascal and TeX (this is meta (metacircular))) allows for you to "render" the program as a typographed work explaining how TeX is made+ run the program as a mean to create typographic work.

I'm lacking the words for a better explanation of how do I feel sbout the distinction, but in a sense I would say that notebooks are litterate scrips, while TeX is a litterate program ? (The difference is aesthetical)

or all the unsloth notebooks