LOL. You’re a fan I see…well done!
Yes, I get your concern. One way to ensure this won’t happen, and while I usually try not to in most cases, is to abstract the critical pieces of code that you don’t want altered or touched and lock it down with source protection. If the code abstraction is done with care and it is tried and true (it needs to be bullet-proof) then there really should be no reason anyone would need access or to alter it. If modifications are needed, they will need to call you to make them.
I know there’s nothing worse than opening a program and seeing source protected code, however, if done right it can be leveraged to protect intellectual property and prevent “fat-fingered” or mindless changes. It really should be a non-issue, especially for what you’re looking to do.