DummyFormLoginFactory example

        parent::build($container);

        $this->configureSecurityExtension($container);
    }

    private function configureSecurityExtension(ContainerBuilder $container): void
    {
        /** @var SecurityExtension $extension */
        $extension = $container->getExtension('security');

        $extension->addAuthenticatorFactory(new DummyFormLoginFactory());
    }
}