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An OS X utility to allow the use of modifier keys across multiple external keyboards
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Dual Wielding

DualKeyboard is a small utility to allow the use of modifier keys "across" external keyboards in OS X. This is useful for people who want to use multiple external keyboards in a split-keyboard arrangement, or because they use a foot pedal or other assistive device.

DualKeyboard is not mine. It was written by Chance Miller of I have preserved it on GitHub in case his site disappears from the Internet.

To use, simply compile using Makefile and then run ./alterkeys. You may need to check "Enable access for assistive devices" in the Universal Access preference pane if you haven't done so already.

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