Wii U Cafe SDK Deluxe is a tool to facilitate the creation of an installable image of a Unity game on a retail Wii U and not a CAT-DEV or CAT-R which are official development kits.
To use this tool, you need several things: A Retail Wii U, Unity For Wii U and the Cafe SDK.
V2 is a complete rework form scratch and is almost ready to release as beta version. New debuging tools, and fixes are in progress with this rewrite of Café SDK Deluxe wich is now easier to use and install. See releases for the v2.0.0 beta and the rewrite branch for the source code
I am currently writing in French and English a complete tutorial for my tool and how to make a Game with Unity Wii U. But I write an short tutorial about how to use this tool on GBATemp. Check it here
To build from source Wii U Cafe SDK Deluxe, you will need .Net Framework 4.8 and Visual Studio 2022 for Windows.
You can consult all known bugs and their fixes here
To create my tool I used the work of dojafoja on Kii U Generator and ihaveahax & timogus on NUSPacker. Also thanks to VitaSmith for CDecrypt. Special thanks to GBATemp contributor for others knowledge about the Wii U Software and Hardware