Having apps that support both keysend and lnurl, my process when I see something like [email protected]
in the value block is to first check the .well-known/keysend route, and if that returns something, then I send the TLV to the keysend route. If I get an error, then I fall back to lnurl with just the boostagram sent.
I'm hoping that encourages people wanting TLV record and keysend to use their Lightning Address in the feed.
