If you want to have your #sats in your own custody, you have to open a channel - a smart contract on #Bitcoin main chain.

There are fully custodial wallets where you don't have to open any channels like Wallet of Satoshi but in that case, you don't own your #sats, the wallet provider does hold it in their channel. It's OK for small amounts like less than a million sats or something, I guess. Most people use them here for zapping.