/diy/ - Do It Yourself

this might help

This might make my head hurt more if I wasn't so familiar with the available hardware choices. You have three separate linkages working together for this one artsy door.

It's really just three hinges and a sturdy door frame. The hinge in the middle has to traverse two axis/pivots at the same time, so it has to be a hinged standoff or rod-end and clevis.

But that would take up much more space than the more simplistic solution of just using an elastic cord or extension spring that runs through an eyelet or deep hole in the corner of those two panels. You drill a deep hole into the edge of those middle panels, then anchor an elastic cord or extension spring to the bottom of those holes.
The opening of the holes simply have to have lined or smoothed edges to reduce wear on the cord or spring.

The remaining issue them becomes latching. You can either use magnets, a grab catch, or a sliding door latch.
>>688673
Is correct. You can't only do this in a 2:1 door frame.