To get started with the building process, you'll need to get familiar with Git and Repo.
To initialize your local repository, use a command like this:
repo init -u https://github.com/Blaze-AOSP/manifest -b 12.0
repo sync -c -j$(nproc --all) --force-sync --no-clone-bundle --no-tags
From root directory of Project, perform following commands in terminal
source build/envsetup.sh
lunch blaze_<devicecodename>-userdebug
make bacon -jX