Nina Maparv contributed to two core features across hiero-ledger’s hiero-sdk-js and hiero-sdk-cpp repositories over a two-month period. In hiero-sdk-js, she enhanced type safety by replacing wildcard type definitions with explicit imports for Channel and MirrorChannel in the ScheduleId module, improving code clarity and maintainability using JavaScript and TypeScript. For hiero-sdk-cpp, Nina designed and implemented an issue recommendation system that suggests relevant issues to contributors based on skill level after pull requests close, leveraging GitHub Actions and Node.js. Her work focused on maintainable, low-risk changes that improved developer onboarding and contributor progression without introducing new bugs.