New big innovation from OpenSea, Project Seaport, is a marketplace protocol which is now public on GitHub. The new smart contract for marketplaces is open sourced and includes some interesting ‘swap’ potential, bid and offer for multiple tokens and NFTs, ERC721, and 1155. Linking to The Seaport Overview will provide more documentation about implementation. This could be something that OpenSea will roll out onto their own platfrom and, being open source, will be an opportunity for the web3 developer community to fork the git, develop, contribute experiment and build features for their own projects and learn powerful tools, scripts and standards to help define the future of web3 marketplaces.