During June 2025, Lorenz Leutgeb upgraded core packages in the Shopify/nixpkgs repository, focusing on radicle-node, radicle-explorer, and radicle-httpd. He applied Nix and version control expertise to update package versions, source hashes, and metadata, while removing obsolete patches now addressed upstream. Lorenz enhanced reproducible builds by ensuring the exact Git commit hash and date were preserved during builds, improving traceability and auditability. His work emphasized stability and future upgradeability, streamlining the build system and package management processes. The depth of these changes reflects a methodical approach to maintaining repository integrity and supporting efficient, reliable upgrades for the project.