Module config 

Functions

env_f64

Read an environment variable as f64 with a default fallback. Returns default if the var is missing or cannot be parsed.

env_u32

Read an environment variable as u32 with a default fallback. Returns default if the var is missing or cannot be parsed.

env_u64

Read an environment variable as u64 with a default fallback. Returns default if the var is missing or cannot be parsed.

env_var_or_file

Read a configuration value from either a direct environment variable NAME or from a file path specified via NAME_FILE. If both are set, NAME takes precedence. Returns Some(value) if found, otherwise None.

env_var_or_file_required

Same as env_var_or_file, but returns an error message when not found.