Worked on stabilizing local testing workflows for the facebook/buck2-prelude repository, focusing on improving the robustness of simulator management and diagnostic capabilities. Addressed issues where device references persisted after removal from disk by making SimInfo attributes nullable, ensuring smoother handling of edge cases. Enhanced simulator version matching by comparing only major and minor versions, which reduced failures when patch versions were unavailable. Introduced exception logging to the ListCommand, increasing visibility into errors during local runs. Utilized Python for debugging, testing, and version management, resulting in more reliable local test outcomes and improved observability for diagnosing failures in development environments.