Roman Papush built a Starlark-defined override for configuration loading in the facebook/buck2-prelude repository, focusing on enhancing observability and maintainability of the Buck2 config pipeline. By conditionally applying the override for read_config and read_root_config based on the log_buckconfigs flag, Roman enabled more granular control and monitoring of configuration processes. The implementation leveraged Starlark scripting and load_symbols integration, ensuring minimal disruption to existing workflows while supporting future config-driven experimentation. Although the work spanned a single feature without bug fixes, it demonstrated depth in build system configuration and laid a solid foundation for improved troubleshooting and operational control in Buck2.