Vim has a GUI (or a UI I guess), but it allows you to input commands. For some reason we think of GUI as mouse based interfaces in which you click around. There

Vim has a GUI (or a UI I guess), but it allows you to input commands. For some reason we think of GUI as mouse based interfaces in which you click around. There’s no reason why this has to be the case. The most powerful form of computing is having the command line for input but also allowing a UI for the display of information.