[hettygreen]

There's an episode of Grand Designs (great show) where some people build an entire house by bringing a CNC machine onsite and banging out pre-fab wall sections exactly like this and connecting them in place.

Here's the full episode: https://www.dailymotion.com/video/x6hsxwd

It's pretty cool to see, but in the end it seemed like way more effort than nailing some 2x4's together.

[dstudzinski]

There was also episode related to https://u-build.org from Studio Bark: https://www.dailymotion.com/video/x7sqcy5 (Grand Designs: The Streets - Box House) which is another option