To get started with Android/Project Cold Fusion, you'll have to get familiar with [Git and Repo] (http://source.android.com/download/using-repo).
To initialize your local repository using the Project Cold Fusion trees, use the following command:
repo init -u git://github.com/konstantinkeller/android.git -b mr1-staging
Then to sync up (This will take a while, so you might as well go get some coffee!):
repo sync
Download the prebuilts (You HAVE TO CD).
cd vendor/cm
. get-prebuilts
Now, setup the build environment (Run this from your working directory root).
. build/envsetup.sh
Finally, start the build for your device.
brunch <device eg. mako>