Billy Cai developed a feature for the Shopify/cli repository that made Marketing Activity Extensions universally available to all users by removing conditional access restrictions. By eliminating the isShopify checks, Billy simplified the import flow and ensured consistent access across different user roles, directly addressing previous access-related bottlenecks. The work focused on CLI and extension development using TypeScript, with an emphasis on improving the developer experience and streamlining cross-team collaboration. Although no major bugs were fixed during this period, the feature delivered clear business value by enabling faster setup for marketing activities and reducing friction in the onboarding process for all users.