Run:

   ./build.sh

pi-gen is the official image builder for Raspberry PI. Stratux is using pi-gen to ensure that Stratux images can be built efficiently and consistently.

pi-gen is used as a submodule to ensure it can be maintained and upgraded more easily. Stratux could have forked pi-gen but that would have required more effort to keep the fork up to date.

The pi-gen arm64 branch should be used if your local system is arm64 (a PI, or an Apple Silicon Mac), otherwise master.