I would like to be able to fire up any terminal app (including ones I've never used) and see, on my second monitor (which is actually a second iPad running a terminal emulator) a glossary of keyboard shortcuts that I invoke on the terminal app I'm currently looking at.
The main part of this vision is just showing a keyboard shortcut glossary for every terminal app in the universe. Does this exist? It would be just like
man but just outputs a nicely readable keyboard shortcut glossary.