Worked on the hmemcpy/nixpkgs repository to initialize and package four Guile-based libraries and tools, focusing on guile-json-rpc, guile-srfi-145, guile-srfi-180, and guile-lsp-server. Leveraged Nix and package management skills to implement versioned package definitions, source fetching, dependency declarations, and standardized metadata, ensuring reproducible builds and maintainability within the nixpkgs ecosystem. The approach emphasized full traceability through commit references and alignment with nixpkgs standards, enabling downstream projects to adopt Guile-based tooling more easily. This work contributed to improved system configuration practices and enhanced the reliability of package management workflows for Guile libraries in Nix environments.