Worked on the pnpm/pnpm repository to develop and port core Pacquet CLI commands, focusing on achieving full parity with pnpm’s established behavior. Implemented the 'root' and 'bin' commands in Rust, ensuring they accurately reflect pnpm’s handling of node_modules and executables directories, including nuanced directory resolution and global checks. Emphasized robust error handling by introducing stable error signaling for unsupported global operations, enhancing maintainability. Developed comprehensive tests to verify cross-platform reliability, with special attention to Windows-specific scenarios. Demonstrated expertise in CLI development, systems programming, and testing, delivering business value through careful alignment with existing workflows and developer expectations.