> For the complete documentation index, see [llms.txt](https://docs.superposition.so/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.superposition.so/superposition-mainnet/arbitrum-layer-3/stylus.md).

# Stylus

Superposition is building on the shoulders of giants. Stylus is Arbitrum’s big bet on the future — Rust powered smart contracts that are 10x less costly than Solidity. Rust is a secure systems programming language leveraging the LLVM toolchain for a high level of optimisation. The Arbitrum team is always pushing the envelope — that’s why Arbitrum is DeFi’s home.

Stylus enables a new way to write smart contracts by introducing a second, co-equal virtual machine that is fully interoperable with the EVM.