@bledley

It should work with any site or platform that links back to your Mastodon account using the "rel=me" standard. In theory this was supposed to be everywhere, but Facebook, Google etc refused to play ball so for the moment it's just on sites that adhere to the standard like Mastodon etc.

I had a look round Pixelfed's Github and you've done everything correctly, I'm not sure why it isn't working on your profile 🤔 https://github.com/pixelfed/pixelfed/issues/3844