I tried fish and it seemed ok, I didn’t continue with it cause I needed to rewrite all my aliases and functions (work related not at home). From memory one was && vs “and” which we use a lot to chain commands. Something like implementing &&/|| would go a long way, compat command sub, closing if statements . I know it seems like a small thing to modify your aliases/functions but I would basically need to modify mine and be a maintainer for the shared ones. TLDR adddition transitionally compat with bash or zsh