Hanzalah W. contributed to both the zulip/zulip and precice/precicehub.io.git repositories, focusing on practical improvements to user experience and organizational stability. In zulip/zulip, Hanzalah implemented a safeguard preventing the sole organization owner from self-deactivation, using JavaScript and TypeScript to enforce governance continuity and adding a user-facing tooltip for clarity. For precice/precicehub.io.git, Hanzalah enhanced documentation by enabling Mermaid diagram rendering in Jekyll-based Markdown files and improved search accessibility with a Cmd/Ctrl+K keyboard shortcut. The work demonstrated thoughtful application of front end development, UI/UX design, and documentation skills, addressing both technical and usability challenges in each project.