How exactly does DNS become un-used?  I have a hard time believing that there’s not one dependency that requires a domain lookup call in some form or fashion. Thanks in advance, really interesting. 

 dns is still used for connecting to the nostr relay. but at least you dont need your own domain to host your lnurl any more 

 You can connect to relays using IP directly. And the IP can be taken from the relay's pubkey metadata. It's super easy.  

 Ok, I see.  Thanks for the explanation.  It’s an incremental improvement.