The idea would be to use nostr:npub1psm37hke2pmxzdzraqe3cjmqs28dv77da74pdx8mtn5a0vegtlas9q8970 on the backend, which uses a lower sats/vB…so tx fees would be ~40 sats, and liquid would only be available until a certain threshold would be met, say like 1000 sats.