Worked on performance optimization for the nix-community/home-manager repository, focusing on improving dependency resolution for large configuration graphs. Delivered a feature that caches Directed Acyclic Graph (DAG) names during normalization, reducing repeated attribute lookups and minimizing intermediate memory allocations. This approach enhanced the efficiency of the topoSort function, resulting in faster dependency resolution and build times for complex setups. The work demonstrated strong skills in functional programming, Nix, and performance profiling, with an emphasis on scalable algorithm design. Collaboration was evident through co-authorship, and the solution directly contributed to more responsive and scalable configuration management within the Nix ecosystem.