I propose a dual mode: - full code and samples in a easy access repository. - Even better: the code are runnable using a online editor with compiler - only t

I propose a dual mode: - full code and samples in a easy access repository. - Even better: the code are runnable using a online editor with compiler - only three most meaningful parts are printed in the book. For the printed code, you can introduce the boilerplates once then mark them in the successive sections.