Hacker News Reader

This sounds just like autojump (typically run using `j`) to me: https://github.com/wting/autojump

Agree that it's an invaluable piece of software!

Any idea what the differences are? Am I missing anything by keeping to use autojump?

No, it seems from the article it's a clone.

Seems like autojump used to work with regexps but now it's something custom. Z works with regexps.