PSA: nostr_console is going to have a encrypted group chat, encrypted using a shared secret. will use kind 140/141/142, on the lines of public channels. Anyone can see who is sending messages, but the actual content of messages will be encrypted.
Discussion
Ooh, is there a NIP for this you can link to?
its basically like NIP 28, but with a shared secret that is given to all participants using direct messages. here is an overview: https://github.com/vishalxl/nips/blob/master/38.md