Worked on the facebook/time repository to enhance time synchronization and API reliability over a two-month period. Delivered Precise Time Measurement support for ptpcheck commands, improving the accuracy of time data retrieval from PTP devices while maintaining backward compatibility. Leveraged Go and backend development skills to extend existing functions and enable higher-precision checks for distributed, time-sensitive applications. In the following month, focused on API channel recognition by introducing dedicated error handling for unrecognized channels and expanding test coverage to improve resilience. Emphasized maintainability and reliability throughout, with a technical approach centered on robust error handling, testing, and time synchronization.