No, it’s a separate instance with different communities and users, but they are federated. So, you can’t login to your lemmygrad account on lemmy.ml, but most of the posts and comments are readable there. From lemmygrad, you can join and post to communities in any of the instances lemmygrad federates with.
(I am posting this comment from lemmy.ml, where my account exists, which is federated with a larger list of instances than lemmygrad is.)
It gets more confusing, though, as I mentioned in my other comment in this thread - these two instances happen to be hosted behind the same IP address (probably on the same machine), so, depending on the kind of failure, one going down might mean the other goes down too.
No, it’s a separate instance with different communities and users, but they are federated. So, you can’t login to your lemmygrad account on lemmy.ml, but most of the posts and comments are readable there. From lemmygrad, you can join and post to communities in any of the instances lemmygrad federates with.
(I am posting this comment from lemmy.ml, where my account exists, which is federated with a larger list of instances than lemmygrad is.)
It gets more confusing, though, as I mentioned in my other comment in this thread - these two instances happen to be hosted behind the same IP address (probably on the same machine), so, depending on the kind of failure, one going down might mean the other goes down too.