Most people know about messages, photos and videos on the #Fediverse. But the #ActivityPub protocol actually defines several object types, each one distinct and more or less compatible across apps:- Note: short post (Mastodon)- Article / Page: long text or shared link (WriteFreely, Lemmy)- Image (Pixelfed)- Video (PeerTube)- Audio (Funkwhale)- Event with date and place (Mobilizon)(1/4)#Fedilab #HolosSocial