Developed and released a new Homebrew Cask for Kontur Talk version 3.1.1 within the Homebrew/homebrew-cask repository, focusing on secure and guideline-compliant software packaging. The work involved implementing a verified parameter for the download host to enhance security, updating the homepage URL, and specifying a dependency on macOS Big Sur to ensure compatibility. Ruby was used to manage the cask definition and apply style fixes in line with Homebrew’s standards. No major bugs were reported during this period, reflecting careful attention to detail and adherence to best practices in Homebrew Cask Management and software packaging workflows.