pub fn init_from_env()Expand description
Initialize the global configuration from environment variables.
Reads values from process environment variables, using each key’s
CONFIG.env_name (from @meta(CONFIG = ConfigAttr { … })) to
determine its mapping. The resulting values are installed as the
Source::Env layer. Keys without a corresponding environment
variable fall back to defaults or higher-priority sources.
Typically invoked once at process startup to overlay config values from the environment. Repeated calls replace the existing Env layer.