Well, "ridiculous_fish", the guy who sort of revived the fish shell is an engineer on the AppKit team at Apple: http://ridiculousfish.com
I remember installing and using fish 4 or 5 years ago; it was not a great experience -- but after he "took over", I switched and couldn't be happier with fish.
I remember installing and using fish 4 or 5 years ago; it was not a great experience -- but after he "took over", I switched and couldn't be happier with fish.