[rodw]

You're probably not the maintainer, but Impromptu's README really should do a better job of explaining what it does and why I'd want to use it.

It sounds interesting, or at least I can imagine something interesting based on that description, but the only concrete information readily available seems to be that Impromptu requires Node.js and Redis. Those are fairly onerous requirements for a shell prompt, so some description of the actual features is probably warranted.