A challenge when developing frameworks is how to keep the code simple and efficient while continuously adding more functionality to the framework. You might find that while the structure of the framework made sense initially, it doesn't support the needs of your increasingly complex framework, requiring you to rethink and rebuild the internals of the framework. Unfortunately, there's no magical way to future-proof your framework and will likely require multiple revisions during its development cycle.
This is no different from normal script development. In the early chapters of this book, we iterated through multiple versions of a script. We did this to illustrate the iterative build process you'll discover during development. This same iterative process can be applied at a larger scale for frameworks. While we are not highlighting that process in this chapter, keep in mind that you may need to rewrite the framework developed here might need to be rewritten if more plugins are later added and efficiency starts to lag. Development by iteration allows us to continuously improve on our original design to create a stable and efficient program.