R7RS, which Gambit (mostly?) supports, helps mitigate this by making library code more portable across implementations. Gambit, in particular, can also very eas

R7RS, which Gambit (mostly?) supports, helps mitigate this by making library code more portable across implementations. Gambit, in particular, can also very easily take advantage of the wide variety of C libraries; it has one of the easiest, most integrated FFIs of all Scheme implementations.