Is there a reasonably easy way to run NeWS (Network-extensible Window System, a PostScript-based window system made by researchers at Sun in the 1980s) on current computers?
There have been 2 efforts to make an emulator that I'm aware of.
Rbuss was a project to emulate NeWS on the original Sun hardware.
And my own project
xpost was intended to be a clone of NeWS. But it's an immense undertaking. After 5 years, I almost got the IPC mechanisms working for multitasking, but never got events or window classes implemented.
For many years, the documentation was hard to come by. Until US libraries started purging their tech books about 2014 when they finally showed up for purchase. And shortly afterword, they were up on bitsavers.
AFAIK, Display Postscript is still available from Adobe for X11. DPS doesn't offer everything from NeWS but does give you PostScript output for C applications. Some of the really nifty features of NeWS like running lightweight processes right on the server are missing.
Older versions of ghostscript had DPS extensions, but I believe it is no longer included in mainline.
Last time I looked into it, NeWS itself was available from Sun with full sources for $1000. So with an old Sun machine, or possibly an emulator, the real thing could be resurrected.
Edit: there is a new project to create an emulator for NeWS, called noticias. Early days, but it is written in Dart hence compilable for various platforms including the web.