It can run some. The Finder is basically System 7.0, with all that implies. Some CDEVs and INITs will work in it, and some others will not only not work but (fr

It can run some. The Finder is basically System 7.0, with all that implies. Some CDEVs and INITs will work in it, and some others will not only not work but (from personal experience) make it impossible to bring up the Mac side. Some Mac apps will balk at what's missing from the OS or are used to playing fast and loose in ways A/UX will prohibit. That said, it is remarkable how the two sides work together. It's not a perfect union because X apps still have to come up in a dedicated X server which runs on the Mac side, so even graphical apps don't come together seamlessly. But even within its limitations it presents a compelling illusion of a unified whole and Commando is a great way to discover command line options.