Worked on enhancing codec interoperability and media engine readiness in the pion/webrtc repository by implementing default H.265 codec support. Focused on simplifying streaming with modern codecs, the work involved adding H.265 to the RegisterDefaultCodecs function and configuring both H.265 and RTX codecs to ensure seamless availability for media streams. This approach improved compatibility and enabled hardware acceleration across various media paths. The implementation was delivered as a focused, single-commit change, supporting efficient code review and safer deployment. Utilized Go for codec implementation and media engineering tasks, emphasizing maintainability and performance improvements in real-time communication systems using modern video standards.