Worked on the nix-community/home-manager repository to enhance cross-shell compatibility by refining Bash configuration management. Focused on shell scripting and configuration management using Nix, the developer removed the explicit checkwinsize setting from the Bash configuration, recognizing that Bash 5 enables this by default. This adjustment reduced the risk of conflicts with alternative shells and streamlined user configuration, particularly for those leveraging multiple shell environments. The approach demonstrated careful alignment with upstream Bash defaults, improving maintainability and simplifying onboarding for new users. The work reflected a strong understanding of scripting hygiene and upstream collaboration, contributing to a more reliable configuration experience.