Worked on stability and reliability improvements for the nix-community/home-manager repository, focusing on system configuration and configuration management using Nix. Addressed two critical bugs over a two-month period, first enhancing NixGL’s NVIDIA Prime support by correcting wrapper detection logic to ensure proper handling during installation scripts. Later, improved the MPD configuration by refining mkIf usage, enabling correct evaluation of MPD_HOST based on network listen addresses and preventing partial evaluation issues. These targeted fixes increased build reproducibility and deployment stability for users. The work demonstrated a methodical approach to system administration, emphasizing correctness and maintainability in Nix-based configuration workflows.