not sure what you mean, isn't that what https://boltz.exchange is for? although in our case we can pay the bolt11 and fund the onchain tx directly with NWC.
I interpreted your design as “hold funds in a custodial lightning wallet until they get big enough, then pull them on chain”. The problem with step two is now to send them back out over lightning you first have to do an on-chain transaction to set up a swap, which will be a terrible UX for paying lightning invoices.
The design makes a hell of a lot of sense otherwise (it’s kinda the old mutiny model), just have to hold the funds in lightning channels.
The design makes a hell of a lot of sense otherwise (it’s kinda the old mutiny model), just have to hold the funds in lightning channels.
1