My I3-Emacs Integration

The author patched the i3 window manager to integrate better with Emacs by allowing keybindings to be passed through to Emacs when it's the focused window, rather than always being intercepted by i3. After finding that existing solutions using xdotool and emacsclient were too slow (causing up to 1 second of lag), they modified i3's source code to check the focused window and conditionally route keypresses to Emacs or handle them in i3, with an option for Emacs to send commands back to i3 if needed.