qemu-block-dmg from devel:coco:Leap15.5 project
Select Your Operating System
Add repository and install manually
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:coco:Leap15.5/15.5/devel:coco:Leap15.5.repo zypper refresh zypper install qemu-block-dmg