Thanks for the information and the 6 sats.
I'm using lnd, I don't think it has any Nostr support, so I'm not sure how I would send zap receipts to relays.
Just saw the "accelerate with gpay" in @mempool. It's quite interesting especially for non-tech people.
It would be even better to accelerate by paying via lightning or cashu, maybe using mempool's mint if they run one.