/// Initialize the logging system using tracing-subscriber.
pub fn init_logging(debug: bool) {
use tracing_subscriber::EnvFilter;
let filter = if debug { "debug" } else { "info" };
tracing_subscriber::fmt()
.with_target(true)
.with_env_filter(
EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new(filter)),
)
.init();
}