Plain meaning
Start with the shortest useful explanation before going deeper.
A multi-chain wallet developed by Coral (the team behind xNFT protocol) that combines MPC and self-custody models. Backpack pioneered executable NFTs (xNFTs) that embed full applications inside NFTs, enabling a decentralized app store experience within the wallet. It supports Solana, Ethereum, and other chains with a focus on developer extensibility and programmable wallet experiences.