Here's a demo of what the registry could look like on the web:
<https://misc.lassi.io/2020/scheme-registry.html>. The stuff we have
amassed by this point all fits on one page.

Here's the standalone Git repo from which it is generated:
<https://github.com/srfi-explorations/registry>. Run "generate.scm" in
any R7RS implementation that has SRFI 132 for sorts. The rest of the
".scm" files hold the repository data.