Interesting article! I have seen lots of updates about NextCloud but it seemed ownCloud had gone dormant. I guess they went into a rearchitecture phase with some very interesting results.
I noticed far up when you first mention EOS you link to a Wikipedia article about the NASA EOS constellation. How does that relate to the EOS CERN system? Did they work on it as well?
I can't recall if it was Pe or another code editor on BeOS but it was the first place I saw code folding. I'm glad it made it to other platforms but when I first saw it I thought it was magical :)