Because both systems utilized PowerPC instruction sets, developers hoped that a significant portion of the Wii’s instruction code could be executed directly on the Xbox 360 without the heavy performance tax of dynamic recompilation (JIT compiling) needed on standard x86 computers.
If you are looking to emulate Wii games, the Dolphin Emulator on a PC is the standard "proper" way to do so. If you specifically want to mod your Xbox 360, most users stick to emulators for older consoles (like SNES or PS1) which run much more reliably on that hardware. zii364
Despite the initial excitement, development on zii364 eventually stalled. Today, the project is frequently discussed on forums like Reddit’s r/360hacks as a vanished relic. This might sound like good news for compatibility,
: A modded Wii U is often cited as the best hardware for this purpose, as it features native backward compatibility and can upscale games to 1080p. let alone a solo homebrew programmer.
This might sound like good news for compatibility, but that's where the similarities end. The Wii's "Hollywood" GPU and complex system architecture are entirely different from the Xbox 360’s "Xenos" GPU. Emulating the Wii isn't just about running the CPU code; it's about perfectly recreating the behavior of its custom graphics chip, audio processors, and input methods (like the Wii Remote). It was a monumental undertaking for any developer, let alone a solo homebrew programmer.