So the Levitch guys started the day with just the concrete foundation and a sill (?) bolted to the top of it, and by the end of the day today the three of them had put up an ad-hoc tent over the site (it was pouring today), framed out the entire floor of the two rooms and cleaned everything up in neatly boxed piles.
I continue to be amazed by their speed. That and it’s still lots of fun every day to watch the addition take shape.