Worked on integrating OPEA’s embedding, generation, and retrieval microservices with the Haystack AI framework, focusing on architectural design and developer experience. Authored a design RFC in the opea-project/docs repository, outlining how Haystack pipelines can leverage OPEA components to streamline customer-facing AI workflows. Developed Python package wrappers to facilitate this integration and proposed a demonstration using a ChatQnA example. The work emphasized API design, system integration, and technical writing, with all deliverables documented in Markdown. No major defects were addressed during this period, as efforts centered on enabling broader adoption and smoother integration of OPEA within Haystack environments.