Scott contributed to the sharkdp/numbat repository by standardizing the notation for litres to the uppercase 'L' throughout the codebase. He addressed this change by updating Rust source files, unit tests, and documentation to ensure consistency with SI conventions, thereby reducing ambiguity for both users and maintainers. This work involved careful code review and modification to maintain clarity in user interfaces and internal logic. By resolving issue #839, Scott improved code readability and set a foundation for safer future refactoring. His efforts demonstrated attention to detail in Rust development, documentation practices, and comprehensive unit testing within a collaborative open-source environment.