In July 2025, Miguel Placeres developed Business Unit Address Management for the labd/commercetools-node-mock repository, focusing on realistic address workflows in test mocks. He implemented actions to set a default shipping address, add shipping address IDs, and remove addresses, enhancing the fidelity of billing and shipping address management in integration tests. Using TypeScript and Node.js, Miguel designed an action-based API that improved code maintainability and clarity. While no major bugs were addressed during this period, his work delivered a robust feature that supports more reliable backend testing scenarios, demonstrating depth in API and backend development within a focused, single-feature release.