@MadestMadness I re-read the documentation and realized I'd forgotten that Emacs line wrapping is a disheartening combination of concepts, modes and config variables. Not even the simple, obvious, stupid thing to do (stick fill-paragraph in post-self-insert-hook) worked. Good luck on your journey.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko