During September 2025, Petrides contributed to the mfem/web repository by enhancing educational resources and improving user engagement through documentation updates. He delivered two features: an updated workshop PDF on AMG filtering and a new gallery entry showcasing a layered spherical shell simulation. Working primarily with Markdown, Petrides focused on content quality and discoverability, ensuring that new materials were accessible without introducing code risk. The PDF resource was integrated seamlessly, while the gallery update included a thumbnail and video link to explain the simulation’s physics and numerical methods. His work demonstrated depth in technical communication and careful attention to user experience.