> Isn’t eMacs just a text editor like vim or nano?

For a start it's either spelled "Emacs" or "EMACS", and definitely not "eMacs".

Then it's closer to an OS than an editor.

> For a start it's either spelled "Emacs" or "EMACS", and definitely not "eMacs".

Everyone knows that, but iOS autocorrects Emacs -> eMacs because Apple used to sell a product called "eMac".