The inside photo is impressive. What are the materials used for something like this?

Looks like 2x4s and steel brackets.

it looks nice for a subtropical climate but it looks awful for a temperate climate plain old thatching and wood frames are better even for subtropical climates (that was the norm here in #madeira until a couple hundred years ago) i think you could extend this steel pole frame geodesic stuff to be suitable for colder climates if you do double layers, but i have lived in the cold, there is NO WAY this building is any good if your winter temps go below 12`C

That thing is pretty sweet.

The natural airflow and the hollow micro-silicate insulation paint (providing an effective r20 insulation value) will make this much more comfortable in warmer and wetter climates. Where I'm building this one in FL, I will be adding a split AC unit and a BTC space heater that I expect to be all the additional climate I will need. For colder climates, the steel provides a curtain wall that can be filled in with whatever you have available, hempcrete, cordwood, cob, or super adobe will all perform better than drywall and siding. The dome is essentially just 5 large pentagons, that can be prefabricated with aircrete. I've found foam-crete (w/re-pelletized styrofoam as aggregate) to be easier to work with. I can easily use the latex cement canvas on both sides, making the framing as thick as I choose, to prefab custom pentagonal structural insulation panels, or square/rectangular, as needed.

The blog post goes into more details and provides resources to lookup even more info on the materials and processes I used, ranging from custom designed 3d printed ASA brackets, to Japanese style woodburned treatment finished out with 3 coats of shellac, and a variation of latex cement canvas stapled like upholstery out of used painters drop cloth and free up cycled paint from the Austin recycling center.