When see the laws of QM, it somehow feels like the kind of quirks I could make in implementing a simulator

It feels like it, but if anything it's the opposite. It's my experience that many people on the border between CS and physics have this thought. However, it's actually much harder to simulate quantum systems than classical systems, and in fact quantum simulation is one of the reasons physicists are interested in quantum computers. (Other people are interested in other problems that quantum computers can do better than classically.)