XCompile

Simply create compose key instructions for Linux and Mac.

The compose sequences are specified by a Unicode characters, a tab and then the key sequence (using → ← ↑ ↓ for the arrow keys).

❤  <3
⇆   ←→

Now you can enter cool unicode characters such as ❤ and ⇆ and with the keystrokes CapsLock < 3 and CapsLock left right!

How to use

Linux

cat Diacritics Math Other | ./XCompile.py > ~/.XCompose && setxkbmap

Specify the CapsLock key as your compose key.

Mac OS

cat Math Diacritics Other | ./KeyBindings.py > ~/Library/KeyBindings/DefaultKeyBinding.Dict

Mac doesn't have a concenpt of a compose key, so instead Ctrl-Opt-Cmd-F8 is used. You can use Karabiner Elements to remap CapsLock to Ctrl-Opt-Cmd-F8. After installation, copy the rule file:

cp ./karabiner-compose.json ~/.config/karabiner/assets/complex_modifications/

And enable the new rule in Karabiner preferences (“Complex Modifications” → “Rules” → “Add Rule”).

Karabiner JSON doc