create your own swap out order (you want to receive sats on-chain).
You'll have to wait if someone will take your order.
Discussion
One thing to mention - you need to post a collateral to get your order active..
I think guys from robosats are active on #Nostr
#[7]
Hello!! Correct, the fidelity bond is a small deposit that the user "locks" which will become unlocked after the trade is completed. By default, the bond is 3% of the total trade amount. Check out our docs: https://learn.robosats.com/docs/bonds
Important to understand that the bond (hold invoice) does not leave your Lightning wallet! But some LN wallets play nicer with RoboSats than others. It's good to refer to the wallet compatibility table and avoid future headaches (like avoiding Muun): https://learn.robosats.com/docs/wallets/