I've been hiring outsourced freelancers through Upwork, and unfortunately they are not always great. The problem is, even once I fire them, they have my codebase on their local computer.
Is there a way to only share a part of my codebase through Gitlab?
Is it a good idea to make small changes to my code and DB so that even if someone has the old codebase on their computer, they won't be able to hit the DB because I made small changes to it?
Any other suggestions?