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And the described use case - USB stuff with very specific exception - makes a strong case for literate programming, that is, more prose than code.

Does everything have to be pushed into a structure-prescribing set of rules?

Can't we just say "comments are useful here" without trying to make it into a case for $methodology?

Literate programming isn't a structure-prescribing set of rules or a methodology. It's just making the prose primary and the code secondary.