Worked on the jellyfin/jellyfin repository to enhance streaming performance by implementing HTTP Range support, enabling partial content delivery for streaming files. Focused on backend development using C# and applied expertise in API development and HTTP protocols to refine how the server handles User-Agent and Content-Type headers. This approach improved compatibility and performance across a variety of client applications, addressing the needs of diverse streaming environments. The work did not involve explicit bug fixes but centered on delivering a robust feature that benefits downstream users by supporting more flexible and efficient media streaming scenarios within the jellyfin/jellyfin codebase.