Worked on enhancing backend reliability and developer experience across lancedb/lancedb and apache/opendal repositories. In lancedb/lancedb, improved Rust-based object-store URI handling by propagating parsing errors instead of unwrapping, which reduced crash risk and provided clearer diagnostics for invalid URIs. For apache/opendal, advanced the Node.js bindings by adding missing directory listing methods and introducing layers for timeout management, logging, and bandwidth throttling. Refactored parameter validation to streamline maintenance and improve runtime reliability. Leveraged skills in Rust, Node.js, and asynchronous programming to deliver robust error handling, better observability, and more stable backend workflows for both Rust and JavaScript environments.