Made a hidden door cabinet using the SOSS 518 hinge. Spendy hinge that's for sure.
Used a normal door latch mechanism without the handle. I fabricated a handle that would remain hidden under normal circumstances.
I took this picture before I modified the handle a bit more. Gave it a twist so the handle didn't sag.
This is the original door that the cabinet will replace.
The cabinet in the open position
The door is closed and latched. The gap will be covered with a molding. Probably 2 moldings, one on the outer perimeter and a smaller molding to cover the gap/margin. The design of the hinge is specifically designed to have a molding over the gap and for it to open and push away so the overlap of the molding doesn't interfere with the opening of the door/cabinet.