If you want to play Wii U titles on your iOS device, you have three practical options. None use Cemu directly, but they achieve similar results.
There are whispers of a private fork of Cemu for ARM Macs (M1/M2 MacBooks) using Apple’s Game Porting Toolkit. Some developers have gotten Breath of the Wild to boot on an M2 iPad via virtualized macOS, but the performance is sub-20 FPS. Cemu Wii U Emulator Ios
Warning: This requires a PC, developer account, or TrollStore (iOS 14–16.6.1). If you want to play Wii U titles
Independent developers have compiled Cemu for ARM64 iOS, leveraging MoltenVK (Vulkan over Metal). With JIT enabled (requires a PC to activate initially), an can run: Some developers have gotten Breath of the Wild
Here is the definitive breakdown of what works, what doesn’t, and how to play Wii U games on iOS today.