openSUSE Tumbleweed image for BPI-M64 How to build

I found openSUSE Tumbleweed images dated 2017-08-29 which use the aarch64 repository for the Raspberry Pi 3. I tried to update the XFCE version to the newest version of Tumbleweed, which failed.

How are these images build?

Is it possible to build such an image with the newest version of Tumbleweed?