During August 2025, this developer refactored the open-feature/flagd repository to adopt the IStore interface, replacing the previous concrete Store implementation. By leveraging Go and applying interface-based programming and software design principles, they standardized data access and reduced code coupling, which improved maintainability and thread safety. The work included removing unused mutex constructs and simplifying synchronization, as well as cleaning up the data model by eliminating the Selector field from Flag and deleting the SourceDetails struct. This targeted refactor and code cleanup streamlined the codebase, reduced its surface area, and enabled faster iteration for future feature flag development and delivery.