In April 2025, Patrick Duvall enhanced the recurly/recurly-js repository by implementing gatewayCode support for PayPal Complete transactions. He introduced a configuration-driven approach using JavaScript and TypeScript, allowing merchants to specify a gatewayCode when initiating the PayPal payment frame. This addition enables more granular routing and improved analytics for PayPal transactions, addressing the need for gateway-specific control and compatibility. The work was delivered in a single, traceable commit, reflecting a focused and maintainable engineering process. Patrick’s contribution demonstrates proficiency in API integration and front end development, with a clear emphasis on payload construction for third-party payment integrations.