Luke Waltz contributed to the hack4impact-calpoly/habitat-for-humanity repository by focusing on documentation maintenance aimed at improving onboarding and testing readiness. His work centered on updating the README.md file, where he added a placeholder line to facilitate test processes and clarify repository usage for new contributors. Using Markdown as the primary language, Luke applied his documentation skills to enhance repository hygiene without introducing any functional changes to the application itself. The scope of his contribution was limited to non-code updates, reflecting a targeted approach to support developer experience. The depth of work was foundational, addressing clarity rather than technical complexity.