Worked on the itchyny/go repository to enhance test stability and continuous integration reliability within containerized Linux environments. Focused on addressing a recurring issue where tests for Ambient Capabilities would fail if the 'nobody' user was absent in Docker containers. Implemented a guard in Go test code to skip these tests when the required user does not exist, thereby reducing flaky test outcomes and improving feedback consistency for contributors. Applied Go programming and testing skills, with attention to Linux user and namespace management, to ensure that CI pipelines remain robust and maintainable for both upstream and downstream users of the project.