SNS.domains. Sui is a new layer 1 blockchain made by the team behind the Diem project, which was Meta’s blockchain initiative. What really separates Sui apart from most layer 1s starts with the Move programming language, which is highly similar to the language used in Solana, but widely regarded as a developer favorite. If you’ve heard about the Move language before, that’s because it's also the language used by their direct competitor Aptos.