Prerequisite
In order to use this cli tool the following packages need to be installed manually. In a later version some might be installed via the cli tool.
Login to docker with your github account , use the gh access token as password:
docker login ghcr.io -u <your gh username># orecho $GITHUB_TOKEN | docker login ghcr.io --username <your gh username> --password-stdin
docker login ghcr.io -u <your gh username># orecho $GITHUB_TOKEN | docker login ghcr.io --username <your gh username> --password-stdin