In case you find the musing fun, today I spent most of my hack time formatting Javadoc as something that will look clear within a CIDER widget. It's a fairly wicked problem, because javadoc mixes natural text with html, so you have to parse a not-quite-html string, while preserving newlines and table alignment. I got it solved with a mixture of Jsoup on the cider-nrepl side, and https://github.com/emacs-mirror/emacs/blob/3dac48d1b73794d2379e233f11736d0279b0733c/lisp/net/shr.el on the elisp side. You can look at how unusable it was before here: https://github.com/clojure-emacs/orchard/issues/179