This page is part of the web mail archives of SRFI 83 from before July 7th, 2015. The new archives for SRFI 83 contain all messages, not just those from before July 7th, 2015.
SRFI-83 says: > A reference implementation for PLT Scheme 299.200 supports > library forms in the MzScheme REPL [...] Is the reference implementation available? Thank you, Andrew Wilcox