We were able to combine the structure of the Visitor pattern and the API features of ScriptableObjects to create a power-up mechanic that permits anyone on our project to author and configure new power-ups without writing a single line of code.
If we need to adjust how power-ups affect various components of our vehicle, we can do so by modifying a single class. So, in conclusion, we achieved a degree of scalability while keeping our code easily maintainable.
The implementations of the standard software design patterns in this book are experimental and adapted in creative ways. We are adapting them to utilize Unity API features and adjusting them for game development use cases. So we should not consider the examples to be academic or standardized references, just interpretations.