[Forbo]

Yeah, the documentation is dated. Not only does it point to an old version, but it would probably be best to get it from the GitHub page he links to. Even then, there are more active forks, so they may be worth checking out to see which would be best to get on board with.

[cutemonster]

Thanks, seems this is the (also outdated) repo: https://github.com/moxie0/knockknock

Yes I suppose one of the forks is better nowadays