Worked on the hmemcpy/nixpkgs repository to enhance the-the-way package by enabling comprehensive unit testing. Addressed the limitation of crates.io by sourcing the package directly from GitHub, ensuring full access to the source code required for running tests. Introduced platform-aware build checks, allowing tests and verification steps to be conditionally enabled based on the host platform, which improved cross-platform testability and reliability. Utilized Nix for package management and build system configuration, focusing on maintainability and reproducibility. The work emphasized robust build processes and clear documentation, contributing to higher quality assurance for package delivery within the Nix ecosystem.