There's plenty of pieces talking it up. And plenty demonizing American CIA actions around those time periods. But the effort itself was such a incredibly simple lo fi system, such a style over substance effort. The screen was literally manually painstakingly updated ahead of time.
As an idea I see why Cybersyn was so successful & enrapturing. And CCRU is quite in that mold, was far and away first & foremost a vibe (albeit I think Chile & the people working on the project would have been mortally insulted to have that said at the time). I appreciate that CCRU was engaged in deliberate mythologization of technology, of cybernetics. Where-as a shallow "pay no attention to the man behind the curtain" act like Cybersyn getting so outsizedly mythologized, being so popularized: that fires my cynicism up.