Bastian focused on backend stability and code quality across the neos-development-collection and neos/flow-development-collection repositories. He improved the Content Repository initialization by ensuring the ContentRepositoryFactory always receives a non-null commandHooksFactory, reducing null-pointer risks and enhancing startup reliability. Using PHP and PHPUnit, he addressed a bug in ContentRepositoryFactory.php that improved production stability. In a separate effort, Bastian normalized NULL value representations in ReflectionServiceTest.php to align with StyleCI standards, streamlining CI processes and improving test maintainability. His work emphasized robust backend development and code style compliance, delivering targeted fixes that improved reliability and maintainability without introducing new features.