This container can be pulled via:
  docker pull registry.opensuse.org/home/zzndb001/container/containers/opensuse/zzndb001/anki-sync-server:2.4.0
  docker pull registry.opensuse.org/home/zzndb001/container/containers/opensuse/zzndb001/anki-sync-server:2.4.0.7.1
  docker pull registry.opensuse.org/home/zzndb001/container/containers/opensuse/zzndb001/anki-sync-server:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.