Karabiner (formerly KeyRemap4MacBook) is a tool that lets you remap certain keys on your keyboard. I find this useful as a developer and someone who writes words in a few ways.
Mega Fast Key Repeats
When I pair with someone for the first time or give a presentation, they usually ask “how are you moving the cursor so fast?” I use Karabiner to crank up the cursor speed. This is most useful for navigating quickly between letters, words, and sentences. Also, it’s useful for quickly killing characters. At first the cursor seems to be flying around, but soon you gain control and can’t imagine working another way.
My current settings (see the “Key Repeat” tab) are for a “delay until repeat” of 250 milliseconds and a “key repeat” of 10 milliseconds. Any shorter of delay until repeat causes me to add extra chaarractersss when I don’t intend to do so. Similarly, 10 milliseconds of key repeat allows me to be pretty precise in cursor placement without sacrificing nearly top speed.
