Disable long press on Mac OS X for vim-mode in Atom editor

I've been using Github's Atom editor for a while now, and one of the first things I tried is vim-mode. However, the Mac OS X special characters popup when pressing a key for a few seconds interfered with my usage, since I could not press "j" or any other key repeatedly by long pressing it. 

To disable this behaviour, on your terminal, write the following:

defaults write com.github.atom ApplePressAndHoldEnabled -bool false

And restart Atom, just to be sure.

Happy editing!