Worked on the spruceid/mobile-sdk-rs repository to deliver the Mobile SDK Release 0.9.0, focusing on release engineering and build stabilization using Rust and version control best practices. The work centered on updating Cargo.toml and Cargo.lock to ensure reproducible builds and consistent dependency management, laying a stable foundation for future development. Emphasis was placed on aligning the SDK with the deployment pipeline and clearly communicating release milestones to stakeholders, enabling smoother downstream integration and feature planning. No major bugs were addressed during this period, as the primary objective was to establish a reliable release baseline and streamline the packaging process.