Ahh edit: it's not signal protocol, it's an alias key exchange, which kind of achieves the same result? I'll need to read more on this.
Idk who needs to hear this but if you haven't used 0xchat or haven't used it in a while do check it out! It's gotten really useful.
Thanks nostr:nprofile1qqsxqn5kuzvex6ssfzpetzcypdrkwts0qjxf3tre8umllex8yqneavsprpmhxue69uhhyetvv9ujumn0wdnxcctjv5hxxmmdqyg8wumn8ghj7mn0wd68ytnhd9hx2qgjwaehxw309amk7apww468smewdahx208h2hh for reminding me it exists 😛
It also has the signal protocol for DMs for hardened security. Amazing.
Discussion
nostr:npub1h0uj825jgcr9lzxyp37ehasuenq070707pj63je07n8mkcsg3u0qnsrwx8 uses the signal protocol