Nikhil Singh developed a foundational feature for the juspay/juspay-mcp repository, focusing on modernizing the Docker image build process. He implemented Nix-based multi-architecture builds, enabling reproducible Docker images for both amd64 and arm64 platforms. By refactoring the build logic into Nix expressions and integrating the workflow with GitHub Actions, Nikhil automated the creation and deployment of images to Docker Hub. This approach reduced maintenance overhead and eliminated environment drift, resulting in more reliable deployments. His work leveraged skills in CI/CD, Docker, and Nix, and demonstrated a deep understanding of process automation and cross-platform DevOps engineering.