RepositoryRestConfiguration now exposes a setRepositoryDetectionStrategy(…) to define which repositories should be detected for exposure by default. The default value for that will consider the repository interfaces visibility but also take the exported flag of @(Repository)RestResource into account. See all other options in RepositoryDetectionStrategies.
Tweaked the auto-registration of excerpt projections to avoid a circular dependency between configuration and resource mappings and moved it onto a BeanPostProcessor implementation.