Max Trewhitt focused on enhancing Rust code editing and generation workflows by migrating core syntax editing and derive tooling to the new SyntaxEditor API across Wilfred/rust-analyzer, ferrocene/ferrocene, and rust-lang/rust. Leveraging Rust and advanced syntax tree manipulation, Max consolidated editor-level improvements to Rust syntax handling, including improved visibility management and more robust derive attribute processing. In ferrocene/ferrocene, Max implemented SyntaxEditor-based visibility management, streamlining the insertion and replacement of visibility modifiers. The migration of derive assist in rust-lang/rust improved code generation consistency and whitespace handling. The work demonstrated depth in code editor development and thoughtful refactoring practices.