Laurent Belmonte developed Enhanced Resource Timing for Network Failures in the servo/servo repository, enabling the recording of resource timing entries for failed network requests to improve performance analysis and debugging. He approached the problem by instrumenting the Resource Timing API in Rust, focusing on network programming and performance optimization. Laurent validated his work with targeted Web Platform Tests and automated CI workflows, ensuring robust observability improvements. By addressing issue #41667, he enhanced the ability to analyze and diagnose network errors efficiently. The depth of his contribution is reflected in the integration of WPT automation and adherence to Servo’s testing practices.