During June 2025, Gabriel Garzia developed the External Configuration Unit Testing API for the microsoft/winget-cli repository, focusing on enhancing automation and integration reliability. He implemented new synchronous and asynchronous testing methods, TestUnit and TestUnitAsync, on the ConfigurationProcessor via the COM API, updating the IDL to support these features. Using C++ and IDL, Gabriel enabled external systems to programmatically test configuration units, reducing manual QA effort and increasing test coverage. His work improved the maintainability and extensibility of the interface definitions, laying a foundation for broader automation, partner integrations, and future expansion of winget-config testing workflows within CI/CD pipelines.