Worked on the drizzle-team/drizzle-orm repository, focusing on backend development and TypeScript to address a critical bug affecting error handling. The main contribution involved refactoring the export path of the DrizzleQueryError class, moving it from src/errors/index.ts to src/errors.ts to resolve a module name clash. This targeted change improved the reliability and accessibility of error exports across modules, reducing runtime import and export issues for downstream consumers. By enhancing the stability of error handling and maintaining a minimal impact on the codebase, the work contributed to improved maintainability and robustness of the TypeScript-based backend infrastructure within the project.