It's super powerful tool to rebind keybindings especially when combined with [Goku compiler](https://github.com/yqrashawn/GokuRakuJoudo) that transforms few lines of edn into 1,000s lines of JSON.

My config in JSON is more than 30,000 lines but in edn is [just 800 lines](https://github.com/nikitavoloboev/dotfiles/blob/master/karabiner/karabiner.edn).