I've started using stainless steel screws and glue.
Dovetail joints and TiteBond III glue, then clamp up for 2 -
4 hours ---- no screws, nails or staples. Water clean-up is great. Biggest problem is getting a router bit for 1-inch rough sawn pine with the routing fixture. I have to plane to .912 and use a 7/8ths deep bit bit (little extra extension ).
Butt joints and screws, Titebond 2. Only on year 4, but no signs at all of weakening, no flex or wobble. I seal the end grain with glue too, then paint. It's working so far.