Benjamin Deustch enhanced the Adyen/adyen-node-api-library by improving the SDK’s usability and modularity through direct exposure of the SessionAuthenticationAPI from the root index. He reorganized and alphabetized the SDK’s exports using TypeScript and Node.js, addressing import path issues to align with code review feedback and ensure maintainable, readable code. His work established a cleaner export structure, making future API surface enhancements and customer integrations more straightforward. By focusing on SDK development and API integration, Benjamin laid a solid foundation for modular growth, though the scope was limited to a single feature without bug fixes during the one-month period.