In November 2024, John Huang contributed to the lizongying/homebrew-cask repository by addressing a bug in the Sparkle update URL handling for ProtonVPN on macOS. He modified the update mechanism to include the application's major version in the URL, aligning the update process with Proton's revised release strategy and preventing update failures for end users. This work involved Ruby programming and leveraged his skills in DevOps and package management to ensure compatibility within the Homebrew Cask workflow. The fix was validated through the release process, demonstrating careful attention to reliability and integration with ProtonVPN’s evolving update requirements.