-       public function prepend(ContainerBuilder $container) {
-               //Load framework configurations
-               //XXX: required to extract default_locale and translation.fallbacks
-               $frameworks = $container->getExtensionConfig('framework');
-
-               //Recursively merge framework configurations
-               $framework = array_reduce(
-                       $frameworks,
+       public function prepend(ContainerBuilder $container): void {
+               /*Load rapsysuser configurations
+               $rapsysusers = $container->getExtensionConfig($alias = RapsysUserBundle::getAlias());
+
+               //Recursively merge rapsysuser configurations
+               $rapsysuser = array_reduce(
+                       $rapsysusers,