Emulating old OS X versions with QEMU

I enjoy installing and playing around with old operating systems. Granted, I don't do much with them once I got them installed, but I like having a look around, checking out the integrated software and just seeing what it feels like to use this OS. The other day I wondered if I could run the first versions of Apple's Mac OS X (back then for Power PC) in a virtual machine or an emulator. And it turned out that it's fairly easy to do with QEMU. Software QEMU is a virtualisation/emulation powerh...