During May 2025, Brian Jackson focused on improving the reliability of the test suite for the Shopify/roast repository. He addressed persistent flaky tests by refining fixture setup, specifically adding a missing .roast directory to ensure consistent test environments. Additionally, he updated error-message assertions to reflect current outputs, which eliminated false negatives in test results. Working primarily with Ruby, Brian applied his debugging and testing skills to streamline continuous integration feedback, reducing time spent on diagnosing test failures. This targeted maintenance work enabled faster, safer deployments and laid a more stable foundation for future feature development within the codebase.