Thanks for the suggestions. I've considered to protect some branches, but in the end decided against it. I was not looking forward to review all their huge amounts of slop code. It would also be different from reviewing code of a "real" developer. Feedback would normally be a way to help each other and improve as a team, and be received with a certain amount of gratitude or at least understanding. In this case, they would not read the feedback, at best they would feed it to a bot. They would see it as a needless obstacle. I agree to scope my parts of the project as much as possible. Then it might still be realistic to continue working on it.