Worked on the Homebrew/homebrew-cask repository to enhance deployment reliability by addressing a critical bug affecting checksum integrity for Retrospective 7.2.0. Focused on release engineering and deployment automation, the work involved correcting the checksum validation process to prevent errors during redeployment of the same software version. This fix reduced the risk of customer-facing issues and strengthened safeguards around package management workflows. Leveraged Ruby and package management expertise to implement a precise, traceable patch, ensuring smoother release cycles. No new user-facing features were introduced during this period, with efforts concentrated on backend stability and maintaining robust deployment processes.