I also want to use Command (Super or Hyper?), which really improves keyboard shortcuts. Command + left/right = jump to beginning or end of line, Option + left/right = jump to beginning/end of word. I know you can do the same with Control + Shift, but some apps don't support it. Plus Cmd+c/x/v for copy/cut/paste works fine in terminals, I don't have to remember to "code switch" my shortcut "language". Cmd+Backspace deletes the whole line, etc etc.