Joowon worked on the skip-mev/skip-go repository, delivering a targeted enhancement to the Public Key Parser to support multiple public key types for Ethereum and Cosmos EVM accounts. This refactor focused on improving cross-chain compatibility by updating the parser’s logic to move beyond the existing BaseAccount approach, enabling smoother multi-chain integrations. Joowon implemented these changes using TypeScript and applied blockchain development expertise, ensuring the parser could flexibly handle evolving account structures. The work was anchored by incremental, well-documented code updates, demonstrating a thoughtful approach to EVM compatibility and laying a foundation for future extension within the Cosmos and Ethereum ecosystems.