Much as I was a fan of NeWS back in the day (and later used a NeWS-ish complete with the Owen Densmore object oriented extensions) postscript interpreter as the basis for our product,

I’m having some issues with that “history.”   First off, you couldn’t arbitrarily cat a PostScript file to the screen and expect it to work.   There were enough differences between Adobe and the NeWS version to cause problems.

The idea of putting small programs (written in PostScript) to handle the interaction was an interesting one.   The problem is that writing stuff in PostScript (even with the NeWS extensions) is so godawful that I have my doubts about having implemented an entire X Server in one (having written several X Servers subsequent to that).

Of course, Gosling came up with a more palatable development language for the next attempt:   Java.