How to install Erlang with Observer?

I’m a bit confused though as to what the point is having a specific erlang_nox attribute when it points to the same package with wxwidget support as the erlang attribute?

Although, I guess this is because the actual wx libraries are platform dependent, that is why there’s wxmac, wxGTK, wxmaxima, and so on. Also found a thread here on the state of BEAM ecosystem that kind of explains this situation.

Anyway, it’s just hard to believe there is no guide on how to set up Erlang with Observer when it is a tool very often used during development.

Or maybe I should learn to properly google. Sorry for venting.