This is one of the many things I learned from the destroyallsoftware screencasts [0] so many years ago. Before that I used vim in a gui (MacVim). Along with moving to tmux this completely changed how I work.
I haven't used many esoteric environments, but wikipedia says it "exists in most modern Unix shells" and the timeline for first adding it was the late 70s early 80s.
> Fred Fish was an American programmer that mailed out a floppy disk every month with a curated selection of the best open-source software available for the Amiga platform.
Fish disks contained mostly freeware/public domain as far as I remember. Not open-source software.
The name "open source" had not even been coined at the time. "PD" was a popular contemporary prefix for things, although their actual public domain status was legally questionable, irrespective of the FSF's objections to the idea.
https://sdf.org/plan9/
In case anyone wants to try sam or acme on Plan9 without having to install the system.