Thanks for looking, I’ll keep trying 
Enjoy whats left of your weekend.
EDIT: I found it - SAFE Network Dev Update - April 25, 2019 - #20 by tfa has posts from @tfa and @bochaco that will help
EDIT:
Perhaps I should have made it clear that the env variales and config file methods are horribly insecure and for testing ONLY. So no real surprise they were dropped from the README