All boards on the Bits of the Golden Age site are open source projects with the build files available for download.  We encourage people to submit the build files directly to their favorite PCB job shop and then share the extra boards with local enthusiasts. To make sure that you are building the latest version, here is the status of the various circuit boards.  Before submitting the build files to your PCB house, please check the version number to make sure you are submitting the intended version.