How to override RV's default source_setup package?

Hi all,
I’ve got a bunch of artists who have RV installed on their local computers. They are all working from home but users can connect to a shared file server. We need to deviate from the default behavior provided by / source setup package . The source_setup package description says, “Its a good idea to override or augment this package for use in production environments.”

I can not easily augment the original package because it is on each artist’s local computer at their house and I have no ability to script actions on their computers.

Overriding a package seems interesting to me since I can make a new package in a shared file server location. However, I did not see any examples of how to go about overriding an existing package’s behaviors.

Any tips or tricks appreciated. Thanks, Adam