During September 2025, Quantway enhanced maintainability and safety across dymensionxyz/dymension, rust-lang/cc-rs, and aptos-labs/aptos-core. They improved test documentation clarity in dymension by refining comments, reducing ambiguity for future contributors. In rust-lang/cc-rs, Quantway addressed a concurrency issue by replacing basic atomic stores with compare_exchange, ensuring thread-safe cache updates in Rust and preventing race conditions. For aptos-labs/aptos-core, they refactored and clarified comments in both Python and Rust files, improving code readability without altering functionality. Their work demonstrated a strong grasp of atomic operations, code refactoring, and concurrency, resulting in more maintainable and robust codebases across multiple languages.