Worked on the typeorm/typeorm repository to deliver a cross-platform IO path by refactoring code to remove the Buffer polyfill on non-node platforms, replacing it with Uint8Array. This change reduced dependency on Buffer, streamlined code paths, and improved performance and compatibility in browser and alternative runtime environments. The approach included adding comprehensive tests to ensure the stability of the new Uint8Array implementation and to prevent regressions in future updates. Leveraged TypeScript and database management skills throughout the process, maintaining feature parity and documenting changes to support ongoing maintenance and future refactors in this full stack development context.