Nostr have spun out of nostr:npub1c878wu04lfqcl5avfy3p5x83ndpvedaxv0dg7pxthakq3jqdyzcs2n8avm nostr:npub16uvg7mx3l97z8phfesl8rxj2vf82vn82hp9daala0egj45ynr8mstn0vkc and Diagonal alley idea and was started by nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6
It has nothing to do with activitiepub as long as I’m aware…
Yeah I can't say ActivityPub hasn't influenced Nostr, but it wasn't a conscious influence at any point if I remember correctly. BitTorrent trackers, SSB and nostr:npub1c878wu04lfqcl5avfy3p5x83ndpvedaxv0dg7pxthakq3jqdyzcs2n8avm's Diagon Alley were more of a direct influence.
But there are some similarities indeed, and if one wants to use Nostr like ActitivyPub they can easily associate themselves with a community relay, let the relay hold their keys on their behalf and go from there. Ditto is another approach that's close to this.
