During June 2026, contributed to the ggml-org/llama.cpp repository by developing a hermetic, reproducible Web UI build process using Nix infrastructure. This work involved creating a dedicated Nix derivation for the Web UI, integrating Node.js and JavaScript dependencies through buildNodeModules to eliminate manual sha256 hashing. The build flow was optimized by relocating the npm build into the install phase and directing outputs to the Nix store, ensuring artifacts aligned with CMake requirements. By reducing external dependencies and network fetches, the changes improved build reproducibility and developer productivity, demonstrating a strong focus on DevOps practices and modern web development workflows.