Kat Marchan contributed to the fastly/js-compute-runtime repository by preparing the codebase for the 2026-01 release, focusing on version bumps and dependency management rather than introducing new features or user-facing changes. Their work centered on updating package versions and aligning dependencies to ensure release stability and compatibility with CI/CD workflows. Using JavaScript and leveraging skills in version control, Kat facilitated a smooth release process for downstream teams by reducing integration risks and supporting automated deployment pipelines. The depth of their contribution lay in maintaining packaging integrity and release readiness, providing a stable foundation for future development and minimizing potential disruptions.