Just stumbled upon this and figured it might be time to resubmit. I'm a little bit sad they didn't implement it Ash/Posix compatible - that would be the holy grail - but I understand that would have made implementation much harder.
You can try it out here https://batsh.org/
Previous Discussion (2014): 400 points - 124 comments
https://news.ycombinator.com/item?id=8254532