C. Holloway contributed to the valgur/conan-center-index repository by adding support for the XTR 3.0.0 package, enabling its distribution through the Conan Package Manager. Using YAML configuration and package management skills, Holloway updated conandata.yml and config.yml to align with Conan Center Index standards, ensuring accurate version registration and metadata. In subsequent work on conan-io/conan-center-index, Holloway improved dependency management by updating XTR to 3.0.1, fixing retrieval URLs, and removing outdated patch versions to streamline maintenance. The work demonstrated disciplined version control and CI/CD practices, resulting in improved package stability and reliability for downstream consumers and maintainers.