To get the Wii U Menu running on the Cemu emulator , you need specific system files typically dumped from a physical console. Since Cemu version 2.0-45, the emulator can run the menu as a game launcher The Quest for the Home Menu

Elias froze. He wasn't connected to the internet. Cemu didn't support the native Nintendo Network servers anymore, not like this. He hadn't configured any online settings.

The final tile in the bottom right corner began to pulse red. It was the settings tile, but the wrench icon had been replaced by a folder icon. Underneath, the text read:

Connect your Wii U's SD card to your PC and follow these paths:

On the first boot, you may see the Mii maker or language selection.

cemu\mlc01\usr\title\00050010\1004000A