Worked on reliability and branding improvements across two repositories, focusing on backend and documentation enhancements. In EspressoSystems/optimism-espresso-integration, addressed faucet contract reliability by requiring SafeCall success before emitting Drip events and adding explicit error handling for failed ETH transfers, which reduced erroneous payouts and improved contract observability. Used Solidity for smart contract development and implemented robust error signaling to enhance user trust. In okx/optimism, contributed a branding update by refreshing the README logo, aligning documentation with project guidelines and supporting contributor onboarding. Leveraged Markdown for documentation and maintained precise commit hygiene, ensuring stability and clear collaboration throughout both projects.