Around the same time (1984), there was also another very cool piece of technology that often gets overlooked: the CMU WARP. It wasn’t as flashy as the Crays and the Connection Machine, but it was the first systolic array accelerator (what we’d now call TPUs). It packed as much MFLOPS as a Cray 1.
It's also the computer that powered the Chevrolet Navlab self-driving car in 1986.
For those interested, this guy is revamping the Emacs widget library with something more modern and platform agnostic, based on SDL: https://appetrosyan.github.io/posts/
His posts are very insightful.
My only complaint regarding the Zed editor is the inability to display two panes of the sidebar one below the other. Not only is it impossible to display them together, but switching between them requires clicking a tiny button in the status bar. To make matters worse, performing a search hides the symbols and the tree view.
So right now I'm sticking to Emacs.