In July 2025, Itse contributed to the symfony/symfony repository by addressing a bug in the ExpressionLanguage component related to the null-safe operator. Using PHP and a strong understanding of Expression Language and testing practices, Itse corrected the handling and output of the null-safe operator when accessing properties or invoking methods on potentially null objects. This work involved updating both the core logic and associated tests to ensure accurate error messages and reliable access paths. The changes improved the stability and maintainability of Symfony’s ExpressionLanguage, reducing runtime surprises and enhancing the overall developer experience for users of the framework.