Use the Capslock as a Control key on OSX for EmacsPosted: August 8, 2009
This is an absolute must, unless you like contorting your fingers and risk RSI. It is also an easy thing to do on OS X.
You need to bring up the System preferences → Keyboard & Mouse
and then click the “Modifier Keys” to remap the Capslock to Control.
This is available on OS X 10.4 and later versions.