Ah, you want to take a look at https://angel.co/houslets https://angel.co/houslets which is looking at multi-story stuff with much the same design philosophy as

Ah, you want to take a look at https://angel.co/houslets https://angel.co/houslets which is looking at multi-story stuff with much the same design philosophy as the hexayurt (use whole panels, get modern materials deployed in sensible ways, keep the building process simple and so on) but pointed at urban densities. I like this project a lot.