sudo apt update
sudo apt-get install git-core gnupg flex bison build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 libncurses5 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z1-dev libgl1-mesa-dev libxml2-utils xsltproc unzip fontconfig

mkdir ~/nitrogen
cd ~/nitrogen

git config --global user.email "[email protected]"
git config --global user.name "login"

repo init -u https://github.com/nitrogen-project/android_manifest.git -b 13

# Look for your device's local manifest file in this organization's page. In case of bluejay, that will be bluejay_local_manifest, so:
git clone https://github.com/nitrogen-project/bluejay_local_manifest.git .repo/local_manifests -b 13

git clone https://gitlab.com/ThankYouMario/android_vendor_google_gms /vendor/google/gms -b topaz

repo sync -j$(nproc --all)

. build/envsetup.sh
lunch nitrogen_device_name-userdebug
make -j$(nproc --all) otapackage

Pixel 6a (bluejay)
Poco X3 (surya)