Need a functioning initial code base

[nj1973]

The initial code base will not work until a few necessary changes have been made:

• Python requirements: we no longer bundle a pre-built Python and initially need to understand how to build a virtual environment we can use to progress further development. Eventually this will become a full build system config but for now we just need to be able to progress
• Once we can run the code we need to fix any fallout so we can at least Offload from Oracle to BigQuery

This work can be completed on the main branch but after that we should work on feature branches only.

[nj1973]

I managed to work through issue [22] successfully. Closing this issue and working on feature branches from now on.