During June 2025, Andrew Leithner focused on dependency version management and metadata integration for the IntersectMBO/cardano-haskell-packages repository. He updated the Hedgehog-extras package to versions 0.7.1.0 and 0.7.2.0, ensuring that flake.lock and associated metadata accurately reflected the latest hackage-nix revisions. By introducing a meta.toml file and embedding detailed provenance information such as timestamps and repository revisions, Andrew established a foundation for reproducible builds and ongoing traceability. His work leveraged Nix and TOML, demonstrating a methodical approach to dependency management and laying groundwork for more robust, maintainable Haskell package sets within the project.