Worked on the duckduckgo/macos-browser repository, focusing on code quality and release engineering over a two-month period. Addressed a SwiftLint warning in SyncDiagnosisHelper.swift by refining spacing within a dictionary literal, ensuring compliance with linting standards while preserving existing logic. Utilized Swift and xcconfig to maintain code formatting and stability in the CI pipeline. In a separate effort, managed a release version bump to 334 (1.120.0), aligning packaging metadata with CI/CD requirements and establishing a stable baseline for future development. Demonstrated attention to build management and linting, contributing to a maintainable and reliable macOS browser codebase.