briqs are construction blocks stored on the Starknet blockchain, an Ethereum layer two solution, as ERC-1155 tokens. Users can collect these briqs and assemble them to create NFTs called 'sets'. These sets can be transferred, sold, lent, or disassembled to retrieve the original briqs for new creations. The platform emphasizes interoperability, allowing users to take their creations into various metaverses and integrate them as they wish.