Ulisses delivered Solana readiness and cross-chain valuation features across the MetaMask/utils and MetaMask/core repositories, expanding multi-chain compatibility and valuation accuracy. He implemented Solana CAIP namespace support by extending the KnownCaipNamespace enum, aligning with blockchain standards and enabling broader ecosystem integration. In MetaMask/core, he added Solana to the exchange rate polling pipeline, updating tests and controller state to support accurate valuation across supported chains. The work included changelog management and coordination of a major release, utilizing TypeScript and JavaScript for backend and full stack development. The depth of the work reflects careful attention to standards and robust testing practices.