Description
Arbitrum Stylus is a developer tooling upgrade to Arbitrum Nitro that adds a WebAssembly (WASM) virtual machine alongside the EVM on Arbitrum One and Nova. It enables writing smart contracts in Rust, C, C++, and other WASM-compatible languages, with Stylus contracts interoperable with existing Solidity deployments through shared interfaces. WASM execution reduces gas costs for memory and compute-intensive operations compared to equivalent EVM bytecode.