Github repo / server update fix -- 2

I need someone that has professional GitHub experience. It's actually quite simple what I'm trying to do in concept, but it is somehow difficult to actually execute. What I'm trying to do is get all these subdomains to not update unless they are specifically told to update. But it gets a little complicated because I have multiple contributors using the same GitHub. There's got to be a way to do this. I'm not sure how. If you're an expert in this, please reach out to me. Again, only if you know what you're doing. AI is not helping us here.