Since there is no bootstrapping process, renaming the command to something more illustrative like image could be beneficial.
In addition, I recommend using list, fetch, and use subcommands, where the use subcommand sets the default image to use (e.g. in case no specific version/image is provided for creation), and list lists all images and marks the default with an asterisk.
The fetch command's behaviour won't be different at this time but will probably add a flag to use a specific URL/address later.
Since there is no bootstrapping process, renaming the command to something more illustrative like image could be beneficial.
In addition, I recommend using list, fetch, and use subcommands, where the use subcommand sets the default image to use (e.g. in case no specific version/image is provided for creation), and list lists all images and marks the default with an asterisk.
The fetch command's behaviour won't be different at this time but will probably add a flag to use a specific URL/address later.