I get a ton of value just from having vim key bindings on the commandline and in REPLs (anything with readline support). Being able to press the up arrow and th

I get a ton of value just from having vim key bindings on the commandline and in REPLs (anything with readline support). Being able to press the up arrow and then quickly edit a typo at the beginning of my previous command without using the mouse saves me a lot of time.