Worked on the NotAShelf/nvf repository to improve the reliability of Python development environments by addressing issues with package management and system configuration. Focused on stabilizing Python tooling, the work involved correcting the namespace mapping for the Python Language Server within python3Packages using Nix, which resolved persistent import and configuration errors. This change ensured that the python-lsp-server was properly referenced, reducing friction for both local and CI workflows. The approach emphasized careful adjustment of package namespaces rather than feature development, demonstrating a methodical focus on infrastructure stability and developer experience through targeted bug fixes in Nix-based Python package management systems.