Matt Robson contributed to the bazelbuild/rules_apple and bazelbuild/rules_swift repositories by delivering targeted enhancements in build system configuration and documentation. He improved the discoverability of mixed-language framework options by updating Markdown documentation to reference the mixed_language_library rule, and aligned default simulator settings with Xcode 15 and iOS 17 requirements using Starlark and Bzl. In rules_swift, he clarified the SWIFT_FEATURE_SUPPRESS_WARNINGS flag documentation, reducing misconfiguration risk and supporting future maintenance. His work focused on precise, maintainable updates that streamlined onboarding and kept project configurations current, demonstrating depth in build tooling and a methodical approach to developer experience improvements.