Aufsichtsrat of a GmbH – Board of Directors

What is this Aufsichtsrat? Another board to make German bureaucracy more insurmountable?

This is usually another supervisory organ of the company. It is optional. It is only common among large companies and when the articles determine it. If the shareholders wish they can have such body. The members of this board can only be physical persons which are nominated by the shareholders’ assembly. The Aufsichtsrat has widespread information rights.
§§§

That sounds so cute what you’re talking of, but I lead a one-man GmbH. Does that rule still apply to me?

Of course not, silly! If you are the company and the company is you, what sense does it make to create a third alter ego? But if you wish so expressly, your wish should be fulfilled.
§