diff --git a/.gitignore b/.gitignore
index f646b9a..56e055b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
-user_input_data/inventories/*
+user_input_data/
 !user_input_data/inventories/sample-bucket/
 app/out.json
 app/items.json
diff --git a/app/Dockerfile b/app/Dockerfile
index a0ef174..9bc7f71 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM centos/python-38-centos7
+FROM arm64v8/python:3.9
 
 # Set the working directory in the container
 WORKDIR /app
diff --git a/docker-compose.yml b/docker-compose.yml
index 3179fe5..bf23457 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,7 +11,7 @@ services:
       - postgres_data:/var/lib/postgresql/data
       - ./rdb:/docker-entrypoint-initdb.d
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER}"]
       interval: 5s
       timeout: 5s
       retries: 5
@@ -77,4 +77,4 @@ volumes:
       driver_opts:
         o: bind
         type: none
-        device: ./user_input_data
\ No newline at end of file
+        device: ./user_input_data
diff --git a/ingestor/Dockerfile b/ingestor/Dockerfile
index bc5c313..8f2d33f 100644
--- a/ingestor/Dockerfile
+++ b/ingestor/Dockerfile
@@ -1,4 +1,4 @@
-FROM centos/python-38-centos7
+FROM arm64v8/python:3.9
 
 # Set the working directory in the container
 WORKDIR /app
diff --git a/ingestor/ingestor.py b/ingestor/ingestor.py
index 39e2a28..78d9740 100755
--- a/ingestor/ingestor.py
+++ b/ingestor/ingestor.py
@@ -2,6 +2,8 @@
 
 import os
 import pandas as pd
+import dask.dataframe as dd
+from dask.distributed import Client, LocalCluster
 import psycopg2
 from psycopg2.extras import execute_values
 import logging
@@ -45,6 +47,16 @@ def __init__(self):
         self.chunk_size = int(os.getenv("CHUNK_SIZE", 5000))
         # Maximum number of chunks to process
         self.max_chunks = int(os.getenv("MAX_CHUNKS", 2))
+        
+        # Set up Dask cluster
+        n_workers = 4
+        threads_per_worker = 2
+        logging.info(f"Initializing Dask cluster with {n_workers} workers, {threads_per_worker} threads per worker")
+        
+        # Start Dask client
+        self.cluster = LocalCluster(n_workers=n_workers, threads_per_worker=threads_per_worker)
+        self.client = Client(self.cluster)
+        logging.info(f"Dask dashboard available at: {self.client.dashboard_link}")
 
         self.conn, self.cur = self.__connect_to_db()
 
@@ -70,9 +82,12 @@ def __del__(self):
         try:
             self.cur.close()
             self.conn.close()
+            # Close Dask client and cluster
+            self.client.close()
+            self.cluster.close()
         except:
             pass
-        logging.info("Database connection closed.")
+        logging.info("Database connection and Dask cluster closed.")
 
     def refresh_materialized_views(self):
         # Refresh the materialized views
@@ -110,35 +125,159 @@ def ingest_csv_dir(self, csv_dir):
         header_columns = self._get_header_columns_for_csv(
             os.path.join(csv_dir, "manifest.json"))
         logging.info(f"Header columns: {header_columns}")
+        
+        # Get all CSV files for parallel processing
+        csv_files = []
         for filename in os.listdir(csv_dir):
-            if filename.endswith(".csv"):
+            if filename == ".DS_Store":
+                continue
+            if filename.endswith(".csv.gz"):
                 csv_filepath = os.path.join(csv_dir, filename)
-                logging.info(f"Processing file: {csv_filepath}")
-                self.insert_csv_to_db(csv_filepath, header_columns)
+                csv_files.append(csv_filepath)
+        
+        # Process files in parallel using Dask
+        if csv_files:
+            self.process_files_with_dask(csv_files, header_columns)
 
     def ingest_inventory_files(self):
+        logging.info(os.listdir(self.inventories_dir))
         # Process each CSV file in the directory
         for bucket_dir in os.listdir(self.inventories_dir):
-            logging.info(f"Processing bucket directory: {bucket_dir}")
-            bucket_dir = os.path.join(self.inventories_dir, bucket_dir)
-            for inventory_type in os.listdir(bucket_dir):
-                logging.info(f"Processing inventory type: {inventory_type}")
-                if inventory_type in self.file_handlers:
-                    inventory_type_dir = os.path.join(
-                        bucket_dir, inventory_type)
-                    try:
-                        self.file_handlers[inventory_type](inventory_type_dir)
-                    except Exception as e:
-                        logging.error(
-                            f"Failed to process {inventory_type_dir}: {e}")
-                        raise e
-                else:
-                    logging.warning(
-                        f"Unsupported inventory type: {inventory_type}")
+            if bucket_dir == ".DS_Store":
+                continue
+            else:
+                logging.info(f"Processing bucket directory: {bucket_dir}")
+                bucket_dir = os.path.join(self.inventories_dir, bucket_dir)
+                for inventory_type in os.listdir(bucket_dir):
+                    logging.info(f"Processing inventory type: {inventory_type}")
+                    if inventory_type == ".DS_Store":
+                        continue
+                    else:
+                        if inventory_type in self.file_handlers:
+                            inventory_type_dir = os.path.join(
+                                bucket_dir, inventory_type)
+                            try:
+                                self.file_handlers[inventory_type](inventory_type_dir)
+                            except Exception as e:
+                                logging.error(
+                                    f"Failed to process {inventory_type_dir}: {e}")
+                                raise e
+                        else:
+                            logging.warning(
+                                f"Unsupported inventory type: {inventory_type}")
 
     def _add_header_to_csv_from_manifest_json(self, filepath):
         pass
 
+    def process_files_with_dask(self, file_list, header_columns):
+        """Process multiple CSV files in parallel with Dask"""
+        logging.info(f"Processing {len(file_list)} CSV files with Dask")
+        
+        # Create a list of tasks, one for each file
+        tasks = []
+        for filepath in file_list:
+            # Submit task to Dask for parallel processing
+            task = self.client.submit(
+                self.process_single_file, 
+                filepath, 
+                header_columns, 
+                self._db_params.copy(),
+                self.chunk_size,
+                self.max_chunks
+            )
+            tasks.append(task)
+        
+        # Wait for all tasks to complete
+        results = self.client.gather(tasks)
+        total_rows = sum(results)
+        logging.info(f"Total rows inserted: {total_rows}")
+    
+    @staticmethod
+    def process_single_file(filepath, header_columns, db_params, chunk_size, max_chunks):
+        """Process a single CSV file and insert its contents into the database.
+        This is a static method so it can be serialized and sent to workers."""
+        logging.info(f"Processing file: {filepath}")
+        
+        total_rows = 0
+        is_limited_chunks = max_chunks > 0
+        current_chunk = 0
+        
+        # Process the file in chunks
+        with pd.read_csv(
+            filepath,
+            header=None,
+            names=header_columns,
+            usecols=range(len(header_columns)),
+            compression='gzip',
+            chunksize=chunk_size
+        ) as reader:
+            for chunk in reader:
+                current_chunk += 1
+                
+                # Stop if we've reached the maximum number of chunks
+                if is_limited_chunks and current_chunk > max_chunks:
+                    break
+                
+                # Drop the column object_access_control_list
+                if "object_access_control_list" in chunk.columns:
+                    chunk.drop(columns=["object_access_control_list"], inplace=True)
+                
+                # Process the data
+                try:
+                    # Normalize the key column (remove double slashes)
+                    def normalize_key(x):
+                        if pd.isna(x) or x is None:
+                            return ""
+                        return re.sub(r'\/\/+', '/', str(x))
+                    
+                    key_normalized = chunk.key.apply(normalize_key)
+                    chunk = chunk.assign(key=key_normalized)
+                    
+                    # Add a suffix column based on the key
+                    def extract_suffix(x):
+                        if pd.isna(x) or x is None:
+                            return None
+                        x_str = str(x)
+                        return x_str.split(".")[-1] if "." in x_str and x_str.rfind(".") > x_str.rfind("/") else None
+                    
+                    suffix_series = chunk.key.apply(extract_suffix)
+                    chunk = chunk.assign(suffix=suffix_series)
+                    
+                    # Add depth column based on the key
+                    def calculate_depth(x):
+                        if pd.isna(x) or x is None:
+                            return 0
+                        return str(x).count("/")
+                    
+                    depth_series = chunk.key.apply(calculate_depth)
+                    chunk = chunk.assign(depth=depth_series)
+                    
+                    # Normalize column names (make them lowercase)
+                    chunk.columns = [c.lower() for c in chunk.columns]
+                    
+                    # Prepare data tuple list for insertion
+                    tuples = [tuple(x) for x in chunk.to_numpy(na_value=None)]
+                    
+                    # Compose the query dynamically based on the CSV columns
+                    cols = ",".join(list(chunk.columns))
+                    query = f"INSERT INTO inventory ({cols}) VALUES %s"
+                    
+                    # Insert data into database
+                    with psycopg2.connect(**db_params) as conn:
+                        with conn.cursor() as cur:
+                            execute_values(cur, query, tuples)
+                            conn.commit()
+                    
+                    # Update row count
+                    total_rows += len(tuples)
+                    logging.info(f"Inserted {len(tuples)} rows from {os.path.basename(filepath)} (Chunk {current_chunk})")
+                
+                except Exception as e:
+                    logging.error(f"Error processing chunk {current_chunk} from {filepath}: {e}")
+        
+        logging.info(f"Completed file {os.path.basename(filepath)} - Inserted {total_rows} rows")
+        return total_rows
+
     def insert_csv_to_db(self, filepath, header_columns):
         """Insert CSV file into the database table in chunks"""
         # Read the CSV in chunks
@@ -150,6 +289,7 @@ def insert_csv_to_db(self, filepath, header_columns):
             header=None,
             names=header_columns,
             usecols=range(len(header_columns)),
+            low_memory=False  # Added to prevent DtypeWarning
         ) as reader:
             for i, chunk in enumerate(reader):
                 logging.info(f"max_chunks: {max_chunks}")
@@ -200,7 +340,7 @@ def insert_csv_to_db(self, filepath, header_columns):
 def main():
     ingestor = Ingestor()
     try:
-        ingestor.ingest_inventory_files()
+        #ingestor.ingest_inventory_files()
         ingestor.refresh_materialized_views()
     except Exception as e:
         logging.error(f"Failed to ingest inventory files: {e}")
diff --git a/ingestor/requirements.txt b/ingestor/requirements.txt
index bcb6ed6..61b3cf2 100644
--- a/ingestor/requirements.txt
+++ b/ingestor/requirements.txt
@@ -1,7 +1,8 @@
+dask
 pandas>=1.5.0
 plotly>=5.9.0
 psycopg2-binary==2.9.3
 matplotlib==3.5.1
 flask==2.0.3
 werkzeug==2.0.3
-inflection>=0.5.1
\ No newline at end of file
+inflection>=0.5.1