Plebian market takes a flat 10% and has a confusing checkout that requires you to pay 2 different invoices back to back (one for the merchant cut, and another for plebian service they call v4v). Merchant gets a straightforward nostr notification, but the buyer experience is something to be desired. It IS a creative way to split a payment, maybe the second invoice page could look a bit different from the first to avoid unnecessary buyer confusion.
