Comment by internet_points

See also https://www.emacswiki.org/emacs/EmacsStories

The air traffic control one is my favorite :)

-----

And when searching for emacs air traffic control I stumbled on https://www.idsairnav.com/main-areas/aim/airport-em-environm... haha:

> EMACS, Electromagnetic Control and Survey, is an AIM (aeronautical information management) tool that applies advanced simulation techniques to perform airport and Enroute electromagnetic environment analysis as well as airport and en-route electromagnetic site verification.