During May 2026, contributed to the symfony/symfony repository by implementing covariant templates support within the TypeInfo component. This feature enhanced type safety and flexibility for template-related code, laying the foundation for broader covariant typing across related components. The work involved PHP development with a focus on advanced type handling and integration into a large, collaborative codebase. Emphasizing commit-driven development, code review, and thorough testing, the changes aimed to improve developer productivity and ensure safer template rendering in Symfony applications. No major bugs were addressed during this period, with efforts concentrated on delivering robust, forward-compatible type system improvements.