Over a two-month period, contributed to package management and configuration reliability in the Nix ecosystem. Upgraded CopyQ from version 11.0.0 to 13.0.0 in the katexochen/nixpkgs repository, aligning packaging with upstream changes by adding a new dependency, updating the source hash, and integrating a patch for reproducible builds. In the nix-community/home-manager repository, improved configuration file generation by enforcing a non-empty string type for configPath, reducing misconfigurations and runtime errors. Leveraged Nix scripting, system administration, and configuration management skills to deliver targeted improvements that enhanced stability and reliability for downstream users and automated deployment environments.