Aaaghaaaaah. Why can't the Scheme folk get their shit together. It's pretty annoying having to search what a decent implementation could be out of the 7 million ones (half abandoned) with different package management, and just slightly but significantly differing behavior even when it's the same revision (that is one of the three simultaneously used and common revisions).
I guess this will improve with the adoption of R7RS but it's glacially slow. R7RS-large never ever.
Fuck it, back to Common Lisp lulz.