CDE builds and runs on an Arch Linux in a VirtualBox.[1]

  Of  course,  there's some bugs to eliminate. First of all, I'm missing
  most of the pixmaps. Some programs don't run yet and  there's  a  hell
  lot  of  warnings  during compile time. Last but not least, there's no
  PKGBUILD for Arch -- yet.

  Nevertheless, it's very interesting, especially for us younger people.
  Back  in  the  nineties,  there  was  *no way* for me to get hold of a
  commercial Unix system. I used Linux at home but that's  it.  I  guess
  CDE  actually  is  nothing special -- but for me, it's *THE* graphical
  environment on Unix. I love it!

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  1. http://www.uninformativ.de/gal/desktop/2012-08-10--CDE-first-shot-missing-pixmaps.png