Very cool! I might hop on with some features at some later date. For example: • only look at public API (ignore ^no-docs) • compare clj to cljs implementation in the same lib • compare lib a to lib b (eg. rewrite-cljs to rewrite-clj).

yeah, PRs welcome :) should add some tests too

(I did write an api diff thingy a while ago, but... oh boy... way over-complicated! )