Adriano De Luca developed a Nix flake-based build and development environment for the stacks-network/stacks-core repository, focusing on reproducible builds and streamlined onboarding. He centralized Nix configuration under contrib/nix, enabling consistent build processes across stacks-node and stacks-signer components. By configuring Rust toolchains and entry points within the new Nix workflow, Adriano aligned development and release processes, reducing setup time and improving CI reliability. His work included version management using TOML and version control best practices. Over the month, Adriano delivered two features that established a robust foundation for future development, demonstrating depth in build systems, DevOps, and Nix.