During the month, contributed reliability and data integration enhancements to apache/opendal and risingwavelabs/risingwave repositories. Developed S3 rate limiting handling by mapping HTTP 429 responses to a retryable RateLimited error, improving error handling for S3-compatible services. In risingwavelabs/risingwave, implemented Avro enum type support for the Kafka sink, updating the Avro encoder to map varchar values to enum symbols and adding integration tests for various enum scenarios. Focused on backend development and cloud services integration using Rust and Shell, with an emphasis on integration testing and schema registry compatibility to strengthen data pipeline resiliency and interoperability across storage and streaming systems.