Cetin worked on stabilizing the Rust toolchain policy for the chainwayxyz/clementine repository, focusing on improving the reliability of continuous integration workflows. By consolidating and rationalizing the use of Rust toolchains in GitHub Actions, Cetin implemented a system that manages transitions between stable and nightly toolchains, including pinning to a specific nightly version and updating nightly dates to match Rust’s release cadence. The approach included revert strategies to maintain compatibility with new Rust releases, reducing CI flakiness and enhancing test reliability. This work leveraged skills in CI/CD, DevOps, and YAML, demonstrating thoughtful engineering to align CI processes with evolving dependencies.