During September 2025, Carlo Appugliese focused on foundational engineering work for the ibm-self-serve-assets/building-blocks repository, prioritizing stability and maintainability over user-facing features. He modularized core components using TypeScript and Node.js, streamlining the codebase to support future development. Carlo updated dependencies to align with security standards and improved the CI/CD pipeline with GitHub Actions, enhancing build reliability. He also strengthened the test infrastructure with Jest and improved documentation, making onboarding and ongoing maintenance more efficient. By laying groundwork such as feature flag scaffolding and API stabilization, Carlo enabled smoother delivery of upcoming features in subsequent quarters.