Possible follow on work from: https://phabricator.wikimedia.org/T292743

I have an RFC piece of documentation for this task at https://meta.wikimedia.org/wiki/User:GModena_(WMF)/Pipelines_Repo_Structure.

It’s a draft under my username to discuss a setup coupled with our current dev environment.
Action points for closing this task:

• Give an ack re repo renaming
• Give an ack re development vs production airflow systesm
• Give an ack re breaking out projects using submodules (at a later stage)