diff --git a/hydra_flash/conf/config_old.yaml b/hydra_flash/conf/config1.yaml
similarity index 100%
rename from hydra_flash/conf/config_old.yaml
rename to hydra_flash/conf/config1.yaml
diff --git a/hydra_flash/utils.py b/hydra_flash/utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..2a6b34c30425bc7147e05d77451541190c51b89f
--- /dev/null
+++ b/hydra_flash/utils.py
@@ -0,0 +1,5 @@
+from pathlib import Path
+
+
+def resolver(root, file_id):
+    return Path(root) / f"{file_id}.jpg"