I think local multicast is easy and obvious at least. Almost have a working demo
nostr:nprofile1qqsrhuxx8l9ex335q7he0f09aej04zpazpl0ne2cgukyawd24mayt8gprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hszxmhwden5te0wfjkccte9emk2um5v4exucn5vvhxxmmd9uq3xamnwvaz7tmhda6zuat50phjummwv5hsx7c9z9 what do you think about this idea? beside your notes on why nostr is not p2p.
Discussion
first time hearing about this. let me do some searches...