During September 2025, Alex D. focused on core backend development for the anyproto/anytype-heart repository, delivering a foundational architectural change by implementing a file-as-object model. This work involved removing legacy file migration logic for blocks, resulting in a cleaner and more testable data model that simplifies file handling and reduces future maintenance. Alex utilized Go and JavaScript to refactor the codebase, introducing new scripts and CI/CD workflows that streamline both development and testing processes. The changes not only improved build efficiency but also enhanced developer onboarding, reflecting a thoughtful approach to maintainability and long-term scalability within the Anytype system.