# Build instructions (Mac) ## Prerequisites * Mac OS X >= 10.7 * [Xcode](https://developer.apple.com/technologies/tools/) * [node.js](http://nodejs.org) ## Getting the code ```bash $ git clone https://github.com/atom/atom-shell.git ``` ## Bootstrapping The bootstrap script will download all necessary build dependencies and create build project files. Notice that we're using `ninja` to build `atom-shell` so there is no Xcode project generated. ```bash $ cd atom-shell $ ./script/bootstrap.py ``` ## Building Build both `Release` and `Debug` targets: ```bash $ ./script/build.py ``` You can also only build the `Debug` target: ```bash $ ./script/build.py -c Debug ``` After building is done, you can find `Atom.app` under `out/Debug`. ## Tests ```bash $ ./script/test.py ```