Over a two-month period, contributed backend engineering work to the run-llama/workflows-ts and run-llama/LlamaIndexTS repositories, focusing on module compatibility and dependency management. Delivered dual ES Module and CommonJS support for middleware, updating build tools and export logic to ensure seamless interoperability across module systems. This approach broadened downstream compatibility and reduced integration risk for users. In LlamaIndexTS, upgraded core dependencies and maintained package hygiene by updating lockfiles and documenting changes for release traceability. Work was implemented using TypeScript, YAML, and Markdown, emphasizing robust build processes, clear documentation, and careful dependency management to support maintainable and interoperable codebases.