Ivy Fanchiang contributed targeted improvements to Nix-based infrastructure, focusing on package management and system configuration. In the srid/nixpkgs repository, Ivy enhanced the portability of Detect-it-easy by upgrading it to version 3.10 and removing hard-coded paths in xoptions, which improved compatibility across diverse environments while maintaining a minimal change footprint. Later, in nix-community/NUR, Ivy expanded repository governance by registering the hexadecimalDinosaur repository, enabling automated tracking and future reporting without altering functional code. Throughout both projects, Ivy applied expertise in Nix and configuration management, delivering precise, auditable changes that addressed specific needs without introducing unnecessary complexity or risk.