Contributed to OffchainLabs/go-ethereum and ethereum/go-ethereum by improving code quality, documentation accuracy, and test reliability over a two-month period. Focused on aligning comments with actual function names to enhance maintainability and onboarding, while also refactoring code to remove unused constants and duplicate tests. Addressed configuration output issues and normalized test expectations to reduce maintenance overhead and improve CI stability. Utilized Go for all development, applying skills in code refactoring, debugging, and configuration management. The work emphasized code hygiene and test clarity, resulting in cleaner repositories and more predictable development workflows for critical Ethereum client projects.