Worked on the laterpay/supertab-docs repository to deliver comprehensive documentation and API reference updates for the new Off-App Purchases feature. Focused on enabling a clear integration path for merchants and developers, the work included detailed guidance on the redirect flow, Supertab SDK installation, and updated usage instructions for the checkEntitlement API. Leveraged Markdown and MDX for documentation authoring, applying documentation engineering and API reference design skills to ensure accuracy and clarity. Collaborated across teams to align installation and entitlement usage, resulting in improved onboarding, faster integration, and reduced support needs without addressing major bugs during this period.