Good show Seaspray 👍 Happy pinning.
At the risk of teaching Granny to process raw eggs 😁
Drill pilot holes to avoid splitting the stringers or planks!
Mind your fingers with the tack hammer, I hold the pins with a small pair of fine point pliers to get 'em started.
Alternative; a Pin Pusher, Amati or similar 👍 There are loads on the Web.
Cheers, Doug 😎