According to CoinMeta, the digital bank Sofi has begun using the stablecoin sofiusd for debit and credit card transactions, and plans to migrate all card services to this system, with an expected annual transaction volume of over $25 billion. Cardholders can continue to use their cards as usual, while on-chain settlements are conducted in the background to speed up the process. This arrangement retains intermediaries such as Mastercard and banks, providing an alternative blockchain settlement channel.