To be clear, this creates a separate Pixelfed account, it just uses your Mastodon info for quick profile setup and authentication.

Here’s a Masto post from an ex-employee:

Thinking about making a “I was part of the Tumblr activityPub federation project ask me how it ended” t-shirt and wear it on my PFP here.

The CEO posted this reply to Twitter, acknowledging that Meta had beaten Tumblr to the Fediverse.

Here’s a screenshot of a post suggesting it’s not a high priority.

If you make a post and tag @fediverse@lemmy.world it should post the first line as the title. If you include a link, I think it will post it as a link too.

Edit: found the issue, it looks like links aren’t supported but it uses the first part of a post as the title.

IIRC the post format is:

Title
@community@server
Body text