Lisp

Yup, seemed like the most straightforward solution. But other than installing it once and writing a basic ~/.m2/settings.xml to point it to the environment for repo credentials, you should never have to think about it again.

If all you need from Leiningen is build/install/deploy a library jar, build.simple should have you covered. I'm dogfooding it in my other recent project Playback – so far so good.