Read their docs. Your Muun funds are stored on chain. When you do a Lightning payment, you actually send funds to Muun's Lightning node and they forward your Lightning payment to the recipient via a technique called a “submarine swap”. And vice versa for funds sent to you over Lightning.
Discussion
Ah, understood. Like a proxy.
But is it safe? Like in a doomsday can i retrieve my funds?
I feel phoenix is ok but im concerned with the way it handles the mnemonic.
