haredoc must be in your system you can get it by installing on your operating system, Install Guide for Hare Just add the haredoc.kak to your autoload directory in kakoune
The plugin is simple you can just edit the keybinds in haredoc.kak to change them if you also prefer in which position the info box to be you can edit the '-style'
Note the haredoc.kak includes a hook so the keybind for haredoc will only happen on hare files