Over a two-month period, contributed foundational improvements to the okx/optimism and op-rs/kona repositories by focusing on code quality, documentation, and CI/CD optimization. Enhanced maintainability in okx/optimism by refactoring type names and enriching crate documentation, streamlining onboarding and future development. In both repositories, implemented parallelized CI test execution and centralized artifact management using GitHub Actions and YAML, which reduced feedback cycles and improved debugging efficiency. Leveraged skills in Rust, testing automation, and dependency management to standardize workflows and reporting, enabling faster, more reliable development processes while ensuring codebase clarity and alignment with evolving repository standards.