diff --git a/src/pyDataInterface/config.py b/src/pyDataInterface/config.py
new file mode 100644
index 0000000..b3b029f
--- /dev/null
+++ b/src/pyDataInterface/config.py
@@ -0,0 +1,12 @@
+from pathlib import Path
+from typing import Literal
+
+from confz import ConfZ, ConfZEnvSource
+
+CONFIG_DIR = Path(__file__).parent.parent.parent.resolve() / "config"
+
+
+class OperationMode(ConfZ):  # type: ignore
+    environment: Literal["development"] | Literal["production"] = "production"
+
+    CONFIG_SOURCES = ConfZEnvSource(allow=["ENVIRONMENT"])