Worked on the block/buzz repository to deliver frequent Buzz Desktop releases, focusing on cross-platform feature development, performance optimization, and user experience improvements for both desktop and mobile clients. Leveraged TypeScript, Rust, and Flutter to implement non-blocking UI rendering, timeline virtualization, and onboarding flows, while maintaining reliability through robust error handling and CI/CD automation. Addressed agent lifecycle management, socket handling, and state synchronization to ensure stability and parity across platforms. Enhanced onboarding, collaboration, and configuration features, and expanded test coverage using Playwright and E2E testing. The work demonstrated depth in fullstack development, system integration, and continuous delivery within a fast-paced release environment.