Worked on the DuendeSoftware/products repository to enhance telemetry extensibility within the identity-server Telemetry module. Delivered a new feature by making the Tracing class public, which enabled activity source extensions and allowed for more flexible telemetry configurations. Focused on stabilizing the API surface and ensuring backward compatibility, laying the groundwork for pluggable telemetry pipelines that support customer-specific customization. The work emphasized maintainability and observability, improving development velocity and issue diagnosis. Utilized C# for implementation, applying skills in API design and telemetry. No major bugs were addressed during this period, as the primary focus remained on feature delivery and stabilization.