Another round house in Wales

I generally don't like round houses, but this is another Welsh home that is especially cozy. And the building method I could really relate to:

"Lift logs, prop up, nail together and continue until no longer wobbly."

Straw bale was used to infill between the log posts. I wonder how hard it would be to use slipformed stone instead.

They did most of the building while living in a tent with a baby and a toddler. Now that's the real thing.