Alberto enhanced Solana wallet functionality in the goat-sdk/goat repository by improving the smart wallet example, enforcing mainnet URL usage for Jupiter swaps, and adding explicit error handling for staging environments. He refactored balance checks for greater robustness, updated swap logic to use USDC and MOTHER, and clarified transaction outputs, all using Python and SDK development skills. In Crossmint/crossmint-sdk, Alberto resolved a transaction signing issue with Backpack for Solana smart wallets, ensuring smoother wallet interactions. His work emphasized security, reliability, and maintainability, while timely patch releases and cross-repo collaboration demonstrated depth in release management and DeFi integrations.