These settings make keys repeat much faster than the default System Preferences allows.
# Key repeat rate (lower = faster, default is 2)
defaults write NSGlobalDomain KeyRepeat -int 1
# Delay before key repeat starts (lower = shorter delay, default is 15)
defaults write NSGlobalDomain InitialKeyRepeat -int 10Run both commands, then log out and log back in (or restart) for changes to take effect.
defaults write NSGlobalDomain KeyRepeat -int 2
defaults write NSGlobalDomain InitialKeyRepeat -int 15defaults read NSGlobalDomain KeyRepeat
defaults read NSGlobalDomain InitialKeyRepeatKeyRepeat: How fast keys repeat. Range is roughly 1-15, where 1 is fastest.InitialKeyRepeat: Delay before repeat starts. Range is roughly 10-120, where 10 is shortest.- These values go beyond what System Preferences > Keyboard allows in the GUI.