Worked on the nix-community/home-manager repository to enhance configuration management for Zsh and Neovim environments. Refactored Zsh history handling by introducing a centralized setOptions function, which streamlined configuration, reduced code duplication, and enabled more flexible history management for both individual users and teams. Later, improved Neovim integration by customizing default plugin provider options, specifically disabling Python3 and Ruby providers by default to minimize unnecessary dependencies and startup overhead. These changes, implemented using Nix, Zsh, and shell scripting, focused on maintainability and scalability, allowing users to opt in to additional features while preserving existing behavior and simplifying future enhancements.