Solved, thanks everyone.

If I try to log into https://lemmy.ml/c/todayilearned with @ancientweasel@social.fossware.space it doesn’t work.

If I search for !todayilearned@lemmy.ml from social.fossware.space it doesn’t show up.

If I browse to lemmy.ml from federated instances on this lemmy there is no federated login that transits to a session on lemmy.ml .

What and I missing? What is a feasible way to have a useful user experience? It seams like this stuff is less than half baked. Please assist.