During a two-month period, Ellz6 modernized the build and packaging systems for thibmaek/TagStudio, focusing on cross-platform compatibility and maintainability. They refactored the repository layout, migrated packaging to PyInstaller and Nix flakes, and introduced Nix OS support to streamline deployments across Linux environments. Using Python, Nix, and Shell scripting, Ellz6 improved CI reliability by ignoring incompatible tests and enhanced documentation with shell-safe pip install commands. Their work also extended to nixpkgs, where they resolved Vesktop packaging validation issues. These efforts resulted in more portable builds, reduced installation friction, and clearer onboarding, demonstrating a strong grasp of build systems and automation.