In April 2026, Gucong worked on the pocket-id/pocket-id repository, focusing on backend development and LDAP integration using Go. He addressed a critical issue in LDAP group synchronization by normalizing posixGroup memberUid values to bare usernames, which improved the accuracy of user group mappings and reduced downstream authorization issues. Gucong implemented a regression test to ensure the mapping remained correct and integrated these changes into the project’s continuous integration pipeline. His work emphasized robust testing and code coverage, demonstrating a methodical approach to backend reliability and maintainability, with particular attention to the nuances of LDAP data handling and validation.