Worked on stability-driven maintenance for the guardian/scala-steward repository, focusing on reducing long-term maintenance overhead and preparing the codebase for future Scala ecosystem updates. Upgraded core dependencies and build tools, including the Scala library, scalafmt, and several sbt plugins, to ensure compatibility and improved build reliability. Automated code formatting using scalafmt and updated blame history management to maintain clear commit traceability. Enhanced test coverage tooling and merge hygiene by refining CI reporting and merge rules. Leveraged skills in Scala, Git, and dependency management to deliver a maintainable, well-documented codebase with improved stability and streamlined development workflows for ongoing projects.