Celalettin Calis stabilized the chronosphereio/calyptia-homebrew-tap repository by addressing a packaging issue in the calyptia-cli Homebrew formula. He performed a targeted rollback, restoring version 3.8.0 by updating the version number, download URLs, and SHA256 checksums, while also removing the problematic 3.11.0 formula file. This work ensured that macOS users could reliably install and upgrade the CLI tool without encountering broken packages, maintaining the integrity of the CI/CD pipeline. Celalettin applied his expertise in Ruby, version control, and formula management to deliver a focused fix that preserved a dependable installation experience for Homebrew users.