sample

type Coordinate struct {
	Latitude  float64
	Longitude float64
	Altitude  float64
}

type DeathStarConfig struct {
	TargetPlanet  PlanetParams
	CommanderName string     `env:"COMMANDER_NAME"`
	ShootPosition Coordinate `env:"SHOOT_POSITION"`
}

type PlanetParams struct {
	Name string `env:"PLANET_NAME,required"`
	Suns int    `env:"PLANET_SUNS"`
}