During November 2024, Chengx Li developed Bluetooth tracing support for the google/perfetto repository, focusing on enabling collection and analysis of Bluetooth-specific trace events. Chengx designed and integrated new protocol buffer definitions using protobuf and C++, ensuring seamless build system integration for cross-platform support. This work established the foundation for a custom Bluetooth data source, facilitating richer telemetry and improved diagnostics for performance monitoring. By validating the integration within Perfetto’s build system, Chengx demonstrated depth in system programming and cross-repository collaboration. The contribution addressed the need for enhanced Bluetooth performance visibility, paving the way for future telemetry and analysis capabilities.