Contributed to the NixOS/nixpkgs repository by adding the Timelength Python package, enabling streamlined provisioning for Python environments. Developed a complete Nix expression and registered the package in python-packages.nix, with a dedicated entry for python313Packages at version 3.0.2. This work leveraged skills in Nix, package management, and Python packaging to ensure reproducible builds and compatibility across Python versions. Close collaboration with maintainers helped align the integration with nixpkgs standards, reducing setup time for data processing workflows. The addition allows users to provision Timelength in a single step, improving efficiency and maintainability for Python-based projects within nixpkgs.