Dock Customisation
Customise the macOS Dock auto-hide animation behaviour.
Remove auto-hide delay
Makes the Dock appear instantly when you move to the edge:
defaults write com.apple.dock autohide-delay -float 0; killall DockSet auto-hide animation speed
Controls how fast the Dock slides in/out (0.5 seconds in this example):
defaults write com.apple.dock autohide-time-modifier -float 0.5; killall DockReset to defaults
defaults delete com.apple.dock autohide-delay; killall Dock
defaults delete com.apple.dock autohide-time-modifier; killall DockLast updated on