Marcin Druzgala enhanced the DuendeSoftware/products repository by delivering extensible telemetry support within the identity-server Telemetry module. He exposed the Tracing class, enabling developers to extend activity sources and configure telemetry pipelines more flexibly. This C#-based API design focused on stabilizing the new telemetry surface while maintaining backward compatibility, laying the groundwork for pluggable telemetry solutions tailored to customer needs. Marcin’s work improved observability and streamlined issue diagnosis by providing clear extension points for telemetry customization. Although no major bugs were addressed during this period, his contributions deepened the module’s maintainability and adaptability, reflecting a thoughtful approach to telemetry architecture.