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