Worked on the duckduckgo/macos-browser repository to improve stability and test reliability for device recovery flows in the DuckDuckGo macOS browser. Focused on re-enabling and stabilizing a previously disabled device recovery test, ensuring it functioned correctly across both App Store and standard browser schemes. Emphasized cross-target test coverage for multi-device account recovery scenarios, which enhanced regression reliability and early risk detection. Utilized Xcode and XML to validate continuous integration and test framework integration, supporting smoother release readiness. No new user-facing features were released during this period, with efforts concentrated on backend testing and bug resolution to reduce post-release issues.