Last time we saw the first appearance of the curved support structures. These are built by Western Wood Structures in Tualatin Oregon and trucked down to Oakland. Below you can see the first of the straight tangential pieces that will eventually form a sort of crown at the top of the cathedral.
Meanwhile more horizontal slats have been inserted.
One detail that has attracted attention is the copper piping that runs from the top to the bottom of the structure. Is this for air conditioning?