Worked on the swift-package-manager repository to address a critical issue affecting package publishing reliability. Focused on file system operations and system programming in Swift, the developer implemented a bug fix that ensures symbolic links are preserved when creating zip archives for package distribution. By introducing the -y flag to the ZipArchive compress function, the solution prevents symlinks from being stored as regular files, which previously led to broken installations. Comprehensive test updates were included to validate symlink preservation, enhancing package integrity. This work contributed to the overall stability of the publishing process and supported continuous integration validation for future releases.