YOLO maximizes the total return using limit order + yield generation. The sell asset is deposited to a yield generating protocol like Aave, Mstable, Yearn, etc. This feature allows limit orders to earn yield for the time they are on the order book. The order creator receives the buy asset automatically when the order is filled. The orders are filled automatically by "Executors". The executor receives a small fee for executing the orders as they have to bear the expenses for running the relayer service and transaction costs.