I am toying with the idea of creating a CNC to handle 4x8 plywood and then developing cut files that will cut the parts for a 4v or L4 dome (https://simplydifferently.org/Geodesic_Dome_Notes?page=5#L4%20Icosahedron%20Dome).
The idea would be to cut the struts from 3/4 plywood, hinge the triangles using regular door hinges, assemble the triangles to create a frame, cover the frame with screening and assemble the triangles into a dome. Once assembled, the custom fitting of doors and windows would need to be done to finish the framing. If the dome is large enough, a second story can be added but with the right hardware, the weight of the floor would be transfered to the outer shell via eyebolts.
Once the framing is completed, spray the exterior with a thin layer of Grancrete, the flow of the spray would be stopped by the screen. From there, add rebar and chain link fence and shotcrete/grancrete the exterior to create the thin shell. If an even thicker shell is required, bricks can be added to the exterior for additional mass. Foam insulation could then be sprayed on the inside. From there, finish the interior as normal (well, as normal for a dome).
I know there are other techniques for building a dome but this seems to me to be the least expensive, lower cost method for assembly. Done correctly, could be done by one skilled individual and one helper. Other techniques such as the monolitic dome method are designed to meet other criteria and seem to be more expensive.
I ran a small cnc router for an a exhibit-museum-themed enviroment shop for several years.(Made some sign stencils for freedom poster to protest cynthia mckinney). When i say run....i mean take abstract designs turn them into dimension parts. My crowning achievement was a fuctioning fire truck for miami childrens museum...3/4 sticking out the wall. Out of 3/4 birch plywood. Now the pump system and cockpit and lights came from outside vendors....and I copied the shape from a blown up pic...but it was cool.
One can build VERY structurally sound and light things using 3/4 birch, wood glue, and a narrow crown staple gun.