LaTeX and DOT are not graphical tools. There are literally dozens of examples of text-based markup tools that are cross-platform, version-controllable, and can

LaTeX and DOT are not graphical tools. There are literally dozens of examples of text-based markup tools that are cross-platform, version-controllable, and can be rendered in a terminal if you're into that, and which don't require me to waste time drawing ridiculous ASCII art borders to denote logical relations.