TL;DR
Get the latest gadgets delivered free with Prime
- Fast, free delivery on millions of items
- Prime Video, Amazon Music and more included
- Member-only deals all year
Developer Rairii says a personal project has brought classic Mac OS to the desktop on Nintendo Wii hardware, with Mac OS 7.6 and 9.2.2 shown booting. The port is still far from ready for public release, and the report describes substantial firmware and memory-mapping work rather than a finished, general-purpose system.
Developer Rairii says classic Mac OS has reached the desktop on Nintendo Wii hardware, reporting a milestone in a personal porting project that also targets the GameCube and may eventually target Wii U. The project has shown Mac OS 7.6 and Mac OS 9.2.2 booting, but Rairii says it is still nowhere near ready for public release.
In a guest report published by Virtually Fun on October 29, Rairii described getting the system to the desktop for the first time. The post includes images identified as Mac OS 7.6 and Mac OS 9.2.2 running on the Wii. The work targets Nintendo consoles built around related ArtX-designed chipsets, including the GameCube’s Flipper and the Wii’s Vegas chipset and later revision, Bollywood.
The initial work centered on getting classic Mac OS’s New World boot process running. Its “Trampoline” bootloader expects an Open Firmware environment, so Rairii ported OpenBIOS and adapted firmware and drivers for Nintendo hardware. The developer says they drew on some drivers from an existing OpenBIOS port associated with Goldfish64’s work on bringing Mac OS X to the Wii, while pursuing a separate port intended to include GameCube support.
Rairii also described changes to address assumptions in the bootloader and kernel about physical memory and memory-mapped hardware. Nintendo consoles arrange RAM and hardware address ranges differently from the systems classic Mac OS expected, requiring patches to memory mappings and other hardware-specific code. For early testing, the developer placed the Mac OS ROM file on a FAT filesystem for OpenBIOS to load. Rairii says the current approach and port are still under development.
Classic Mac OS on Nintendo Hardware
The reported milestone shows a vintage Apple operating system reaching its desktop on consumer hardware that was not designed to run it. That is relevant to retrocomputing and console homebrew: it brings together classic PowerPC software, Nintendo hardware, and the firmware work needed to connect them. It also illustrates how much of a port can depend on low-level details, not just whether a processor uses the same broad architecture.
For readers, the distinction between a desktop demonstration and a usable release matters. The report confirms the developer’s claimed boot milestone, but does not establish that applications, sound, networking, storage, or other components work reliably. It is a technical progress report, not evidence that Wii owners can currently install and use Mac OS as a complete system.
Products Worth Considering
Logitech MX Brio Ultra HD 4K Webcam, Graphite
DJI Osmo Mobile 7P Phone Gimbal with Mic Mini Transmitter, Infinity Black
Amazon Kindle Paperwhite (12th Generation, 2024), 16 GB, 7-inch Display, Jade
As an affiliate, we earn on qualifying purchases.
The Port’s Firmware Foundations
Rairii says the project began on June 22, 2025, when they forked the upstream OpenBIOS code. They describe it as a learning and hobby project, following earlier work porting Windows NT to other PowerPC systems, including Macs. The developer says experience gained across those efforts helped inform the new port.
The console targets are linked by their hardware lineage. In the report, Rairii describes the GameCube’s Flipper chipset as designed by ArtX and says the Wii’s Vegas and later Bollywood are successors; the Wii U’s Latte is identified as another related design. The developer’s stated target is broader than the Wii, though the reported desktop milestone concerns the Wii.
Classic Mac OS’s boot path was a central obstacle. New World versions use the Trampoline bootloader in an Open Firmware environment. Rairii says the boot code made assumptions about physical addresses, RAM layout, and memory-mapped I/O that did not fit the consoles. The developer patched address handling and kernel memory setup, and accounted for changes between older and newer versions of the bootloader.
What the Demonstration Does Not Show
The report does not provide a public download, a release date, or a complete compatibility list. It is also unclear from the material how much of the operating system is functional beyond reaching the desktop, including whether the display, input, storage, and other devices work consistently outside the developer’s tests. Rairii explicitly says the project is not close to public release.
The post describes some testing through the Dolphin emulator, including an EXI-IDE driver that the developer says does not correctly match real hardware and instead matches their emulator setup. That caveat means emulator results should not be treated as proof that every described component works on an unmodified physical console. The report does not detail independent testing or verification.
Further Porting Work Ahead
Rairii says the project will continue through further hardware-specific patches and driver development; the report does not set a release timetable. The developer is also weighing how to handle memory mapping on Wii U hardware, where a GPU-related address range may offer a way to expose memory in a form useful for graphics, depending on whether the project needs it.
The next meaningful milestones would be clearer evidence of operation on physical hardware, more complete support for console devices, and a stated plan for distribution. Until the developer provides those details, the confirmed status is a reported desktop boot of Mac OS 7.6 and 9.2.2 on Wii hardware, with the wider port unfinished.
Key Questions
What happened in the project?
Rairii reports that classic Mac OS reached the desktop on Nintendo Wii hardware. The guest post identifies Mac OS 7.6 and 9.2.2 in the demonstrations.
Can Wii owners download and install the port?
No public release is described. Rairii says the project is nowhere near ready for public release, and gives no download or release date.
Does the port work on the GameCube or Wii U too?
The project is intended to cover hardware with related ArtX chipsets, and Rairii says GameCube support is a target. The reported desktop milestone is on the Wii; the post does not establish equivalent working desktop boots on GameCube or Wii U.
What made the port difficult?
The Mac OS bootloader and kernel expect firmware and memory layouts that differ from those on Nintendo consoles. Rairii describes porting OpenBIOS and patching physical-memory and memory-mapped I/O assumptions to get the system booting.
Is this a complete, independently verified release?
No. The source is a developer’s account of a work-in-progress milestone, not an independent compatibility review. It does not establish full device support or reliable everyday use.
Source: virtuallyfun.com
