You have three guesses and the first two don't count

Good afternoon.

The kablan spent some more time on the hole this morning:

And:

On the roof front, the argaz ruach is basically finished:

And:

Meanwhile, they started closing off the attic wall overlooking the porch:

And:

And also:

Finally, we conclude with a guessing game. Three points to the first commenter who correctly identifies this interesting-looking contraption:

More to come...