> 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/orbit-chains.md).

# Orbit Chains

Arbitrum Orbit allows Developers to permissionlessly launch their own custom chains that settle on Arbitrum One. It is the technology behind the Superposition Layer-3, and utilises Arbitrum's Nitro Tech Stack to offer high throughput, low transaction costs and more efficient memory usage. 

It allows Developers to choose a custom ERC-20 gas token for their chain, modular data availability solutions (such as Conduit), self governance as well as utilising Arbitrum Stylus to write Smart Contracts using the Stylus Rust SDK.