Update app.py

app.py

@@ -72,8 +72,8 @@ def merge_models() -> None:
     command = ["mergekit-yaml", "config.yaml", "merge", "--copy-tokenizer", "--allow-crimes", "--out-shard-size", "1B", "--lazy-unpickle"]
 
     try:
-        result = subprocess.run(command, check=True, stdout=subprocess.PIPE,
-                                stderr=subprocess.PIPE, text=True)
+        result = subprocess.run(command, check=True, stdout="output.log",
+                                stderr="output.log", text=True)
         print(f"mergekit: {result.stdout}")
     except subprocess.CalledProcessError as e:
         print(f"mergekit: {e.stderr}")