Excellent! Does it require use of the PLT Scheme implementation, with use of PLT's "educational" extensions to the Scheme language, or should it work as-is (wi

Excellent! Does it require use of the PLT Scheme implementation, with use of PLT's "educational" extensions to the Scheme language, or should it work as-is (with, perhaps, some obvious adjustments -- such as using display instead of print, though even that can be problematic for a beginner) with any implementation that conforms to the standard? It kinda looks like it would require PLT Scheme specifically, judging by hints in the introductory text (such as "Everything you needed in this tutorial is provided in PLT Scheme."), but it doesn't just come out and explicitly say so.