Key repeat
To maximize your writing experience on macOS, there are a few hidden features that can be enabled through the Terminal.
Enable key repeat everywhere
This feature enables you to press and hold a key to repeat it.
defaults write -g ApplePressAndHoldEnabled -bool false
Set a blazingly fast keyboard repeat rate
This will enable your cursor to move quickly and efficiently through your code.
defaults write NSGlobalDomain KeyRepeat -int 1
defaults write NSGlobalDomain InitialKeyRepeat -int 15