Worked on the vercel/turborepo repository to enhance pnpm lockfile settings handling, focusing on preserving newly introduced fields during the prune process. Leveraged Rust and backend development skills to implement a forward-compatibility mechanism using serde(flatten), ensuring that unknown or future pnpm settings are retained and preventing configuration mismatches that could disrupt installations. Developed comprehensive tests to verify that deduplication-related fields and other settings survive pruning and round-trips, addressing the root cause of lockfile desynchronization. This work improved the reliability of CI pipelines and developer workflows by maintaining lockfile integrity across updates and supporting future pnpm enhancements without breaking changes.