This is an Xcode project used to develop SwiftGL.
If you are here to use the libraries, you can find them here. There are also tutorials to get you started.
To use this Xcode project you must have GLFW3 installed. For homebrew,
brew install --HEAD glfw3
does the trick. Currently due to a bug in GLFW 3.2.1 on macos, you have to use the master branch to get the bug fix.