In July 2025, Twey developed and delivered three features focused on backend infrastructure and user experience improvements. Working primarily in Rust, Twey enhanced the linera-io/linera-protocol repository by implementing asynchronous balance retrieval for the default chain in Linera-Web, improving both performance and responsiveness for end users. Twey also ensured long-term maintainability by updating dependency management to support Rust 1.88. In the tokio-rs/tokio repository, Twey introduced a local runtime flavor to the #[tokio::main] macro, enabling spawn_local for non-Send futures within main. This work demonstrated depth in asynchronous programming, concurrency, and macro development, addressing real-world developer needs.