- Go to System Preferences -> Keyboard -> Modifier Keys...
- Change “Caps Lock” to “No action”
- Install Seil
- Change the Caps Lock key in Seil to keyCode 80 (F19)
- Install Karabiner
- Open Karabiner and go to Misc & Uninstall -> Open private.xml
- Copy the contents of this gist's example to the XML file and save
- In Karabiner, go to Change Keys -> Reload XML