Are the new features really readable? I have no idea what this code from the OP is meant for:
#[SkipDiscovery(static function (Container $container): bool {
return ! $container->get(Application::class) instanceof ConsoleApplication;
})]
final class BlogPostEventHandlers
{ /* … */ }
As a side note, even PHP's official wiki cannot highlight correctly the multiline attributes behind a "#". See https://wiki.php.net/rfc/closures_in_const_expr