Hitarth integrated a JAX backend into the XanaduAI/MrMustard repository, enabling backend-agnostic numerical computation with improved performance when using JAX. He designed and implemented the BackendJax class, connected it with the backend manager, and updated datatype compatibility to support seamless JAX workflows. His work focused on backend development and numerical computation in Python, emphasizing robust software engineering practices. Hitarth expanded the test suite to validate both backend functionality and agnostic behavior, ensuring reliability and scalability. Over the month, he concentrated on design, integration, and comprehensive test coverage, delivering a well-architected feature that unlocks faster computation for MrMustard users.