Does anyone have success stories of efficient design work happening on
IRC? I've been avoiding it and Slack since they tend to be disorganized
and encourage procrastination. But an IRC channel for fast-paced
collaboration on Scheme infrastructure would be inspiring.

In case of the library lookup and packaging stuff, it would be crucial
to have Scheme implementors on board; otherwise any solution is dead on
arrival. That's why I believe srfi-discuss is ideal for that talk.