Yup. I get that... But I don't know how to move from lightning to on chain. That's my own problem, though.
I'm still confused as to why zapping isn't working.
Discussion
you can use nostr:npub1psm37hke2pmxzdzraqe3cjmqs28dv77da74pdx8mtn5a0vegtlas9q8970 if you wanna do it manually, or if you want abstract a bit of it away, you can use nostr:npub1ajlrwgfj4yerhqf7ady03h7wmtk2qr3gs7h3sxcx83k05yld36sswpzx3q
I'll check those out.
aqua can accept lightning payment which it auto-converts to liquid.
from their you can swap liquid to btc.
also, it's been about a year or so but I have in the past gone from ecash straight to liquid in aqua. was a bit wonky then but worked and is likely better now
I don't know anything about liquid.
it's a sidechain that acts very much like bitcoin (UTXO's, etc) where you can peg-in / peg-out bitcoin.
1 min block times.
it's federated custody so not trustless, but it does work.
anyways, once you have sats in there, in aqua you can do a swap to peg-out your liquid sats and "turn em back into bitcoin", which is then in your custody.
the same seedphrase in aqua is used for both liquid and bitcoin.