task.attributes(attributes);
        });

        // Avoid overlapping outputs by copying exactly what we want from other intermediate tasks
        TaskProvider<Sync> userguide = tasks.register("userguide", Sync.class, task -> {
            task.setGroup("documentation");

For any non-trivial change, we need to be able to answer these questions:

* Why is this change done? What's the use case?
* For user facing features, what will the API look like?
* What test cases should it have? What could go wrong?
* How will it roughly be implemented? We'll happily provide code pointers to save you time.