oh. i was not aware of the keysend well-known url. all of this is very interesting and something to consider. that said, @Adam Curry did mention using 'lnurlp' last year. im hoping that we can find a solution that works best for the average person.
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Yeah lnaddress/lnurlp is what we want to move towards, but the boost metadata issue has been tricky.
Keysend lets you attach arbitrary metadata (TLVs) along with your payment, which is how boosts work right now. The payments and boost metadata arrive directly to your wallet/node without any third-party involvement.
Lnurlp doesn't have the same flexibility and only gives you a 200 character comment field to use, which is too small for our purposes. We basically need a service or api or something to store the metadata for each payment and there's no agreement on how that should work.
Nostr solved this problem by having the lnurlp server post the metadata back to Nostr as a zap receipt whenever receiving a payment. There's still some ambivalence about using Nostr or any third-party service in the podcast world.