Update app.py

app.py

@@ -36,8 +36,7 @@ def create_vectorstore(splits):
         splits, 
         embeddings, 
         client_settings=Settings(
-            chroma_db_impl="duckdb+parquet",  # Use DuckDB in-memory for Chroma
-            persist_directory=None  # No need for persistent storage
+            chroma_db_impl="duckdb+parquet"
         )
     )
     retriever = vectorstore.as_retriever()