Worked on enhancing Solana wallet experiences across the goat-sdk/goat and Crossmint/crossmint-sdk repositories, focusing on security, reliability, and maintainability. Improved the Solana Smart Wallet example by enforcing mainnet URLs for Jupiter swaps, adding explicit error handling for staging environments, and updating swap logic to use USDC and MOTHER tokens. Refactored balance checks and transaction confirmation flows for robustness, while clarifying transaction outputs for better user visibility. Delivered patch releases and resolved a transaction signing issue with Backpack in Crossmint, streamlining wallet interactions. Utilized Python, SDK development, and smart contract integration to deliver timely updates and maintainable codebases.