Framing out a house with construction lumber is “open source” too. Vastly simpler and cheaper than lock-together blocks made out of relatively complex materials

Framing out a house with construction lumber is “open source” too. Vastly simpler and cheaper than lock-together blocks made out of relatively complex materials like sheet goods. In a pinch, you can fell trees and process them with hand tools using methods refined over many, many generations. In other words, stick construction has been public domain for so long that it would be impossible to even acknowledge its creator and significant contributors.