Even though I wince at mis remembered muscle memory using it, I still wish nvi had progressed a little further. I mostly turn off vim features. Default cut-paste with code indent is a giant mismatch. It's cruder, and itself a mishmash of non-joy code, but I found nvi suited me well for decades on netbsd and freebsd, and I use it still. I do run the port on osx but somehow each upgrade I find myself slipped back into vim. And on debian and the like.

I live in Emacs for org, and vi for code edit. Happy mix these last 40+ years.

Sometimes it's hard to recall that ex exists, inside vi. But if you do any :command that's where you are. Inside a simpler editor landscape embedded in the visual world.

Ed is a sometimes tool. Always gratifying to use it!