Nonfungible token (NFT) marketplace Rarible has introduced a new functionality titled “lazy minting” that promises users the ability to create nonfungible tokens at zero cost — all while enhancing environmental sustainability on the platform.

Rarible, which is moving away from the conventional method in which data is kept on the blockchain right after it’s created, announced Monday that NFTs are now available. These are “minted not at the moment of creation, but at the moment of purchase. It’s the buyer who pays the gas fees when purchasing the item.” In this case, data will be stored on a decentralized peer-to-peer storage system called IPFS.