As the engineering unit of GoArt, we're building a metaverse that contains a mobile app, an NFT marketplace web app, lots of smart contracts, and various types of backend services. GoArt Mobile App is being built with Unity. And NFT marketplace web app and backend services are running on top of the Kubernetes for proper scaling method. On the blockchain side, we're coding smart contracts by solidity. We prefer L1 or L2 EVM networks to deploy and execute our smart contracts to reduce gas fees and perform fast transactions.