I think that's why it's very important to get buy-in and solicit feedback from coworkers even if you're the domain expert. Also, regression test coverage from t

I think that's why it's very important to get buy-in and solicit feedback from coworkers even if you're the domain expert. Also, regression test coverage from the beginning is very important if you ever expect anyone else or even your future self to have a shot at safely modifying mission critical pieces of code.