#IdeaToBuild Peer to peer marketplace for real stuff. E.g. eBay. Core features: - List items to sell - Set price or open for auction - When buy/bid - the funds are put into on-chain escrow. The receive address is encrypted with seller's key - Item is sent by the seller (encrypting tracking information with buyer's key) - On item received, receiver confirms and releases escrow funds - Conflict resolution service can charge for using escrow in case of dispute / lost package and etc Later tooling like chat can help with communicating between seller and buyer. The item listing can be an NFT, to leverage existing marketplace contracts. But they should be "burnable" on receiving physical item.