Keep an eye out for another email from us later tonight or tomorrow (depending on when you signed up). It will have all the details you need to get started, including how to create your first Loop.
Still waiting for the second email. As far as I know this kind of situations are usual with Pixelfed too.
I never ever received that registration email. Also, the content is not viewable without an account. Disappointing, especially considering the countdown to release which turned out to be a countdown to nothing.