PS2 Speaking of archives, but otherwise totally unrelated: It has
occurred to me that some recent discussions about SRFI drafts were
based on intermediate Github versions and not on published drafts.
This can make it hard to reconstruct the reasoning in the future. It's
like the difference between citing a published paper and refering to
some internet page.
This is one reason that I try to publish drafts as quickly as possible. I try to assume that anything not in the official SRFI Git repos or mailing lists will disappear someday.