Matthew Kline integrated the Hoare package into the simonmichael/stackage and commercialhaskell/lts-haskell repositories, focusing on build system configuration using YAML. He established explicit versioning and registered maintainers, ensuring the package was available and properly managed within the build environments. By updating LTS-23 build constraints and onboarding new contributors, Matthew improved build reproducibility and streamlined dependency management for downstream consumers. His work laid the foundation for smoother CI releases and facilitated broader ecosystem adoption. Although the focus was on feature integration rather than bug fixes, the depth of his contributions enhanced contributor onboarding and long-term maintainability of the build systems.