Andrey Kozhevnikov contributed to the facebook/buck2-prelude repository by improving code hygiene in the python_wheel.bzl build script. He refactored a helper function name to achieve Starlark linting compliance, ensuring the wheel-building process remained unchanged while aligning with project lint rules. This update addressed ongoing CI issues related to lint checks, resulting in more stable and maintainable build configurations. Andrey’s work demonstrated proficiency in Starlark, build system configuration, and Python integration within Bazel. The change reduced technical debt and improved onboarding for future maintainers, reflecting a thoughtful approach to long-term code quality and project standards within the repository.