Stitching in the transoms. Not much to it. A nice bevel helps and I use the jewelers trick of holding the pieces together as if joined and running a saw through the join to clean up any roughness and get a even joint, but not much to it.
drawing the bow together using torsion (not unlike a medieval seige weapon. watch out.)
Transom is in.
A lot of work, a lot of work, to do on the interior now, but it is taking shape nicely.