To get started with manifest/PixysOS, you'll need to get familiar with Repo and Version Control with Git.
To initialize your local repository using the PixysOS trees, use a command like this :
repo init -u https://github.com/PixysOS/manifest -b fourteen-v2
Then to be sure to add device stuffs in local_manifest and then sync up :
repo sync -c -j8 --force-sync --no-clone-bundle --no-tags
$ . build/envsetup.sh
$ lunch pixys_$device-ap1a-userdebug
$ m pixysrelease ( for both fastboot and ota packages)
For releasing it on xda , use this template