Worked on modernizing the CI/CD platform for the srid/nixpkgs repository, focusing on improving build system reliability and release efficiency. The primary feature delivered involved upgrading the GitHub Runner to version 2.321.0 and migrating the CI pipeline from .NET SDK 6.0 to 8.0, while also removing outdated Node.js 16 support. Using Nix and expertise in package management, the work addressed deterministic build challenges by correcting test data path discovery, ensuring that automated tests consistently locate their required data. This targeted approach reduced pipeline variance and streamlined release cycles, reflecting a focused contribution to infrastructure and build process modernization.