How to declare a Carthage built XCFramework dependency?

I'm preparing my project for the upcoming Carthage release, which will build dependencies as XCFrameworks. How do I properly indicate a dependency on an XCFramework in my project.yml project spec?

Second question: Is there a way to disable the carthage copy files script being automatically added:
If any applications contain carthage dependencies within itself or any dependent targets, a carthage copy files script is automatically added to the application containing all the relevant frameworks. A FRAMEWORK_SEARCH_PATHS setting is also automatically added

For context, in the upcoming carthage release, they indicate that you'll no longer need to include a run script to call carthage copy-frameworks, and including this would actually introduce breaking changes to the currently carthage update --use-xcframeworks flow.

Start by tracing how project.yml dependency declarations are parsed and how the generated Carthage copy-frameworks script is added. Verify the expected XCFramework declaration against the upcoming Carthage flow, then confirm the result in generated Xcode projects with and without the automatic script.