I don’t think that’s possible to do using activity pub, but if you have a matrix account you can add it in your settings. When viewing the profile of someone who has a matrix account set on the web ui, there will be a button that says “send encrypted message”. You should see it if you look at my profile page, for example.
I hope they will add e2e encrypted DMs
That’s not really Lemmy’s purpose. I disliked when Reddit added it, and it would be an unnecessary addition here as well.
I don’t think that’s possible to do using activity pub, but if you have a matrix account you can add it in your settings. When viewing the profile of someone who has a matrix account set on the web ui, there will be a button that says “send encrypted message”. You should see it if you look at my profile page, for example.