Karabiner

Karabiner is a powerful utility for keyboard customization.

Change the key mappings (For example, "Change Right Option to Enter")
Change the key repeat speed.
The revival of a lost NumPad key (Fn+jkluio789…)
Features for more efficient operations. (Emacs Mode, Vi Mode, Mouse Keys Mode, ...)

Prior to version 9.3.0, Karabiner was called KeyRemap4MacBook.

Useful links

Latest build: https://pqrs.org/osx/karabiner/
Mirror: http://tekezo.github.io/pqrs.org/
Google Group: https://groups.google.com/forum/#!forum/osx-karabiner

System requirements

Karabiner works for all Mac products, including the MacBook series, iMac, Mac mini, and Mac Pro, with the requirement that the product runs OS X 10.9 (Mavericks) or higher.

If you require Karabiner for OS X 10.6 - 10.8, please use KeyRemap4MacBook 8.4.0.
If you require Karabiner for OS X 10.4 - 10.5, please use KeyRemap4MacBook 5.1.0.

How to build

System requirements:

OS X 10.10+
Xcode 6.0.1+
Command Line Tools for Xcode
Boost 1.56.0+ (header-only) http://www.boost.org/
CocoaPods http://cocoapods.org/ (sudo gem install cocoapods && pod setup)

Please install Boost into /usr/local/include/boost.

Step 1: Getting source code

Download the source to master.tar.gz in the current directory, this can be re-executed to restart a cancelled download.

curl -OLC - https://github.com/tekezo/Karabiner/archive/master.tar.gz

Extract the master.tar.gz file to "Karabiner-master" and delete the tar.gz file

tar -xvzf master.tar.gz && rm master.tar.gz

Step 2: Building a package

cd Karabiner-master
make

The make script will create a redistributable Karabiner-VERSION.dmg in the current directory.