During December 2025, Timo Santi focused on improving dependency correctness in the nrwl/nx repository by addressing a bug in workspace pruning. He implemented a targeted fix to ensure that all transitive dependencies from workspace libraries are accurately included in the pruned lockfile, even when nx.name differs from package.json.name. By replacing the previous graph.nodes lookup with a workspacePackages-based approach, Timo enhanced the reliability of dependency traversal. Working primarily with Node and TypeScript in a full stack context, his solution strengthened build determinism and reduced the risk of runtime failures and CI flakiness for Nx workspace libraries.