Its main value is the novelty of seeing the AmigaOS 4.0 kernel boot on non-native PowerPC hardware. Practical Alternatives
Then, the hacker known as "Moana" changed everything.
Edit DH0:MOANA.CFG (use ed or copy from CD examples) – minimal needed:
While theoretically compatible with several G4 models, the Moana Loader is highly specific about its hardware needs: The Mac Mini G4 1.5 GHz model is widely cited as the most compatible version.
Before rebooting, you must copy the to the hard drive, or the system won’t boot without the CD.