#ActivityPub #Nostr #Fediverse #Protocol #Mastodon #Misskey #Blusky https://search.yahoo.co.jp/realtime/search?p=ActivityPub%20or%20Nostr%20or%20Fediverse%20or%20Protocol%20Mastodon%20or%20Misskey%20or%20Blusky https://gigazine.net/news/202