During January 2025, N. Ciechanowski focused on improving build reliability for the GaetanLepage/nixpkgs repository by addressing a macOS build failure in the pay-respects package. They identified that missing network-request dependencies were causing issues and resolved this by updating the Nix packaging to explicitly include curl as a build dependency. This change ensured that macOS builds completed successfully, reducing CI failures and potential release blockers. Their work demonstrated practical skills in build system configuration and package management, with a strong understanding of the Nix language. The contribution was targeted, addressing a specific problem with depth and technical precision.