Arjun Gupta enhanced the AdobeDocs/app-builder repository by developing comprehensive documentation to guide developers through the migration from Service Account (JWT) credentials to OAuth Server-to-Server credentials ahead of the January 2025 deprecation deadline. Leveraging Markdown and technical writing skills, Arjun authored clear migration instructions, including deployment steps using the AIO CLI, and ensured the documentation was accessible by correcting a broken external link in the security authentication guide. This work improved the reliability and clarity of the migration process, reducing friction for teams preparing for the transition and strengthening the overall quality and integrity of the project’s authentication documentation.