cmd

type CommandFunc func(*app) *cobra.Command

type Variant struct {
	Name       string // the command's name, in help, usage and hints
	BaseURL    string
	BaseURLEnv string // overrides BaseURL
	HomeFolder string // under the home directory
	HomeEnv    string // overrides HomeFolder
	APIKeyEnv  string
	// Extra are commands only this build has, added beside the shared ones.
	Extra []CommandFunc
}