Ethereum scaling solution Arbitrum Orbit is officially mainnet ready, developer Offchain Labs says. This means that builders can create their own chains which will settle onto one of Arbitrum’s layer-2 chains, including Arbitrum One, Arbitrum Nova, and testnets Arbitrum Goerli or Arbitrum Sepolia.
“If you want to build a chain that settles onto an Arbitrum chain, in other words, a [layer-3] chain, that’s open, permissionless, you don’t need a specific license because that license is granted."