Worked on enhancing the fireproof-storage/fireproof repository by addressing a critical bug in CRDT-based storage systems. Focused on improving correctness and atomicity, the developer ensured that all blocks undergo validation before any commit operation, using asynchronous programming techniques in TypeScript. By implementing Promise.all to await validations, they prevented silent acceptance of invalid blocks and eliminated partial updates, thereby reducing the risk of data corruption. The addition of a dedicated test suite expanded coverage for block validation and atomic commit behavior, resulting in safer, more reliable data integrity for distributed production workloads. Emphasis was placed on maintainability and robust testing practices.