”#Tumblr is...not open source yet. But we’ve said it’s going to be & we’ve tried to make the data super open. So the API’s, you can put your Tumblr into #WordPress very easily, you can export all your Tumblr content... then longer term, we want to support these new protocols like #ActivityPub on top of… We’re gonna support #RSS so things are easy to get in and out.”

Mastodon post by Tim Chambers