diff --git a/output/placeholder b/output/placeholder
new file mode 100644
index 0000000..473a0f4
diff --git a/src/main.py b/src/main.py
index 0f5cb56..b830c24 100644
--- a/src/main.py
+++ b/src/main.py
@@ -198,7 +198,7 @@ def make_nexus_schema_dictionary(substrate_object, layers):
                 "duration": layer.post_annealing_duration,
             },
         }
-    return json.dumps(pld_fabrication, indent=2)
+    return pld_fabrication
 
 if __name__=="__main__":
     # TO-DO: place the API base URL somewhere else. 
@@ -209,5 +209,7 @@ if __name__=="__main__":
     sample = Entrypoint(data)
     substrate_object = chain_entrypoint_to_batch(sample) # Substrate-class object
     layers = chain_entrypoint_to_layers(sample) # list of Layer-class objects
-    print(make_nexus_schema_dictionary(substrate_object, layers)) # debug
-
+    result = make_nexus_schema_dictionary(substrate_object, layers)
+    # print(make_nexus_schema_dictionary(substrate_object, layers)) # debug
+    with open (f"output/sample-{elabid}.json", "w") as f:
+        json.dump(result, f, indent=3)