Developed an extensible Rust SDK integration for Turso, focusing on enabling custom I/O handling to support diverse runtime and testing needs. The work introduced a new io field and a with_io_impl setter in the Builder struct, allowing developers to inject tailored I/O implementations without modifying core logic. Updates to the tursodatabase/turso repository included re-exporting the core module and updating bindings to streamline access to I/O traits, enhancing developer ergonomics and integration flexibility. Leveraging skills in API development, Rust, and software design, the approach aligned with modular architecture and dependency injection patterns to facilitate robust, testable SDK customization.