There's periodically some confusion about the example packages in federated plugin implementation packages in flutter/plugins; we have them for testing purposes, not because people should actually (in all but the rarest cases) actually use the package that way. We should have a boilerplate to put in the README to indicate that it's not actually a demonstration of normal use, explaining that it's for testing, and pointing to the app-facing package. We should also have tooling to ensure that we have that boilerplate rather than the default "Demonstrates the insert_plugin_name_here plugin."