Rayyan developed a guest checkout feature for event registration in the adobecom/events-milo repository, enabling users to RSVP without logging in when guest-checkout metadata is enabled. He implemented the customer-facing flow using JavaScript, focusing on front end development to ensure the process remained secure and aligned with product goals to reduce friction for event participants. The solution included metadata gating to control feature exposure, preserving existing logged-in flows while allowing flexible rollout. Rayyan’s work was well-documented, with changes isolated for easy deployment. Over the month, he delivered one feature, demonstrating depth in JavaScript and front end engineering for user experience improvements.