Extracting private blobs
use a repository for the blobs if this bothers you (“-e INCLUDE_PROPRIETARY=true”) - depending on your bandwidth it’s more straightforward. I laid out the options at Failed build for bramble - #5 by tcecyk
The env var is not a default… it’s not suggested in the official doc link at step 5 - but in the repository of the docker image it is explained.
Making this old nougat build work is not easy, good luck! - as @aibd suggested, use the latest vaild nougat branch or build tag