It seems that Wikipedia is testing their new design. This new design only applied for few languages. Few that I know so far are Bahasa Indonesia, Japanese, and Portuguese.
Japanese page snapshot before redesign[1] and after redesign [2].
Left the company for a usual startup setup with your own Macbook, pull requests, and things.
I miss the almost zero friction collaboration.
As a pair. Either of us will point out each other mistakes and suggest an improvements to what we're doing in real time without the ping-pong of pull request.
If both of us can't figure things out. We can just scooch over to other pair workstation, sit in the other chair, use the mouse and keyboard to show part of code we have issue with, point to the monitor, and ask questions.