Worked on the nix-community/home-manager repository to address a deployment reliability issue related to NIX_PATH propagation. Focused on the Home-Manager script, the developer implemented a fix ensuring that custom NIX_PATH configurations are correctly passed to nix-instantiate, which resolved failures caused by empty NIX_PATH environments introduced by the new system.nix entry point. This change reduced configuration errors and improved the consistency of option inspection across different environments. The work involved Bash scripting and applied principles of Infrastructure as Code using Nix, demonstrating attention to detail in cross-environment compatibility and a methodical approach to debugging and maintaining deployment workflows.