To get started with Android/Destroyer-OS, you'll need to get familiar with Repo and Version Control with Git.
To initialize your local repository using the LineageOS trees, use a command like this:
repo init -u git://github.com/Destroyer-OS/manifest.git -b cm-14.1
Then to sync up:
repo sync
Please see the ARC Forums for building instructions, by device.
For more information on this Github Organization and how it is structured,