[skydhash]

Composition. I don’t think there’s any GUI that can be used for the git email workflow.

Versatility. In most TUI editors, running an external commands is easy, including piping a part of the text and receiving its output. As this is a fundamental unix principle, there’s basically no barrier between what you’re editing and other data on your system. In GUI, everything is its own silo.

Presentation. Code is not linear, but most gui forces use to use one window to see your text files. And when they allow splitting it’s cumbersome to use. Vim and Emacs has a easier way to divide you screen so that the relevant information can be presented at once. And there’s terminal multiplexers for simpler editors.