During April 2025, Daan Weterings enhanced the labd/commercetools-node-mock repository by focusing on cart shipping management features. He implemented support for custom fields on shipping addresses and enabled the removal of shipping methods directly within the cart, improving the flexibility and accuracy of shipping configurations. Using TypeScript and leveraging skills in API integration and backend development, Daan addressed a typeId handling issue in the removeShippingMethod action, reducing the risk of misconfigurations during integration testing. These updates aligned the mock API more closely with production e-commerce platforms, supporting more reliable checkout flows and enabling more comprehensive automated testing scenarios.