Would it be possible to add `add-libs` from `tools.deps.alpha`? https://insideclojure.org/2018/05/04/add-lib/ Then you could add libraries at runtime directly from the REPL
You could then pair it with a pastbin and share/run code snippets (with some URL shortener). Could you imagine the possibilities for bug reports for instance? :D You could reproducibly demo bugs (well and features as well)