diff --git a/src/logging_setup.rs b/src/logging_setup.rs
new file mode 100644
index 0000000..c14ab4e
--- /dev/null
+++ b/src/logging_setup.rs
@@ -0,0 +1,10 @@
+// Central place to initialize logging across tests and binary.
+use std::sync::Once;
+
+static INIT: Once = Once::new();
+
+pub fn setup() {
+    INIT.call_once(|| {
+        env_logger::init();
+    });
+}