In order to create the XZ img files run the following:
pushd ALEXNDR/images/ for f in *.img; do xz -9 -z -e ${f}; done popd
In order to build the ZIP for DevBase run the following:
UPDATE_BIN="META-INF/com/google/android/update-binary"
ROMNAME=$(grep -m1 ROMNAME
zip -9 -r $BASEVERSION-$ROMNAME-$VERSION.zip * -x .git/* -x .gitignore -x README.md