Your NIP-05 seems to be messed-up, now. Shows the "!" in Jumble.
nostr:npub1l5sga6xg72phsz5422ykujprejwud075ggrr3z2hwyrfgr7eylqstegx9z i know you done an all nighter but i fixed that favicon thing in the lerproxy
the code you wrote was trying to serve it from the #orly but it needed to be adjacent to the nostr.json handling in the reverse proxy. i have added a default icon based on the owl pic and if you put favicon.ico in the same directory as the nostr.json from the mapping.txt configuration, it will serve that instead.
as you can see on my #jumble notes i now have an ORLY owl instead of a check badge