Worked on enhancing the command-line interface for the cdisc-org/cdisc-rules-engine repository, focusing on expanding Linux compatibility and improving maintainability. Leveraged Python to update core path handling, modernize type hints, and clean up imports, which reduced code duplication and simplified future maintenance. Strengthened type safety and clarified usage documentation, making the CLI more accessible for new users and supporting broader deployment across Unix-like systems. The technical approach emphasized code optimization and clear documentation, resulting in a more reliable and user-friendly tool. Collaboration with the team ensured cohesive changes that improved cross-platform usability and streamlined onboarding for developers working with the CLI.