@jamey @marcan simple non-DE WMs, using X as xterm multiplexer, over the network, mixing sparc and x86 windows, the much better tooling for e.g. xmodmap, xcompose, etc. and the fact that XFree86 works with just 64 MiB RAM and doesn’t need a 3D graphics card, is well-established so huge portability and program availability, and that’s just what’s on top of my head