diff --git a/watcher.py b/watcher.py
index b00744a..bb9e898 100644
--- a/watcher.py
+++ b/watcher.py
@@ -1,96 +1,114 @@
 #!/usr/bin/env python3
-import sys
+import os
 import time
 import threading
-import os
 import subprocess
+import logging
+from logging.handlers import TimedRotatingFileHandler
 from watchdog.observers import Observer
 from watchdog.events import FileSystemEventHandler
 
-DEBOUNCE_DELAY = 2  # seconds to wait after last modification
+# Configuration
+WATCH_DIR = os.environ.get("WATCH_DIR", "/data")
+DEBOUNCE_DELAY = int(os.environ.get("DEBOUNCE_DELAY", "2"))
 DEBUG = os.environ.get("DEBUG", "false").lower() == "true"
+LOG_DIR = os.path.join(WATCH_DIR, "/logs")
+os.makedirs(LOG_DIR, exist_ok=True)
+
+# Set up logging with monthly rollover
+log_file_path = os.path.join(LOG_DIR, "watcher.log")
+logger = logging.getLogger("WatcherLogger")
+logger.setLevel(logging.DEBUG)
+formatter = logging.Formatter("[%(asctime)s] %(levelname)s: %(message)s", "%Y-%m-%d %H:%M:%S")
+
+# Timed rotating handler (monthly)
+handler = TimedRotatingFileHandler(log_file_path, when="midnight", interval=1)
+handler.suffix = "%Y-%m"  # files will be like watcher.log.2025-09
+handler.setFormatter(formatter)
+logger.addHandler(handler)
+
+# Optionally log to console if DEBUG
+if DEBUG:
+    console_handler = logging.StreamHandler()
+    console_handler.setFormatter(formatter)
+    logger.addHandler(console_handler)
 
 class WatcherHandler(FileSystemEventHandler):
     def __init__(self):
         super().__init__()
-        self.debounce_timers = {}       # path -> Timer
-        self.processed_folders = set()  # already processed folders
+        self.debounce_timers = {}
+        self.processed_folders = set()
 
     def on_any_event(self, event):
-        # Print all events
         if event.event_type == "moved":
-            print(f"{'DIR' if event.is_directory else 'FILE'} MOVED: {event.src_path} -> {event.dest_path}")
+            logger.info(f"{'DIR' if event.is_directory else 'FILE'} MOVED: {event.src_path} -> {event.dest_path}")
         else:
-            print(f"{'DIR' if event.is_directory else 'FILE'} {event.event_type.upper()}: {event.src_path}")
+            logger.info(f"{'DIR' if event.is_directory else 'FILE'} {event.event_type.upper()}: {event.src_path}")
 
-        # Only schedule processing for directories
         if event.is_directory and event.event_type in ("created", "moved", "modified"):
             path_to_process = event.dest_path if event.event_type == "moved" else event.src_path
             self.schedule_process(path_to_process)
 
     def schedule_process(self, path):
-        """Debounce processing of a folder."""
         if path in self.debounce_timers:
             self.debounce_timers[path].cancel()
-
         timer = threading.Timer(DEBOUNCE_DELAY, self.process_new_dir, args=[path])
         self.debounce_timers[path] = timer
         timer.start()
 
     def process_new_dir(self, path):
-        """Called after folder is stable for DEBOUNCE_DELAY seconds."""
         if path in self.debounce_timers:
             del self.debounce_timers[path]
 
         if not os.path.exists(path):
-            if DEBUG:
-                print(f"⚠️ Skipping {path}, folder no longer exists")
+            logger.warning(f"Skipping {path}, folder no longer exists")
+            return
+
+        folder_name = os.path.basename(path)
+        if "Books 1-" in folder_name:
+            logger.info(f"Skipping folder {folder_name} due to 'Books 1-'")
             return
 
-        # Check if folder has .m4b files
         m4b_files = [
             f for f in os.listdir(path)
             if os.path.isfile(os.path.join(path, f)) and f.lower().endswith(".m4b") and not f.startswith("._")
         ]
 
         if not m4b_files:
-            if DEBUG:
-                print(f"❌ No .m4b files in {path}, skipping")
+            logger.info(f"No .m4b files in {path}, skipping")
             return
 
-        # Avoid re-processing the same folder
         if path in self.processed_folders:
-            if DEBUG:
-                print(f"⚠️ Folder already processed: {path}")
+            logger.info(f"Folder already processed: {path}")
             return
         self.processed_folders.add(path)
 
-        print(f"📂 Folder ready: {path} contains {len(m4b_files)} .m4b file(s)")
+        logger.info(f"Folder ready: {path} contains {len(m4b_files)} .m4b file(s)")
 
-        # Run main.py -da
         try:
-            subprocess.run(["python3", "main.py", "-da", path], check=True)
-            print(f"✅ Processed folder: {path}")
+            result = subprocess.run(
+                ["python3", "main.py", "-da", path],
+                check=True,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.STDOUT,
+                text=True
+            )
+            logger.info(result.stdout)
+            logger.info(f"Processed folder: {path}")
         except subprocess.CalledProcessError as e:
-            print(f"❌ Error processing folder {path}: {e}")
+            logger.error(f"Error processing folder {path}:\n{e.output if hasattr(e, 'output') else e}")
 
 def main():
-    if len(sys.argv) < 2:
-        print(f"Usage: {sys.argv[0]} /path/to/watch")
-        sys.exit(1)
-
-    watch_path = sys.argv[1]
-
-    if not os.path.exists(watch_path):
-        print(f"❌ Path does not exist: {watch_path}")
-        sys.exit(1)
+    if not os.path.exists(WATCH_DIR):
+        logger.error(f"Path does not exist: {WATCH_DIR}")
+        return
 
     event_handler = WatcherHandler()
     observer = Observer()
-    observer.schedule(event_handler, watch_path, recursive=True)
+    observer.schedule(event_handler, WATCH_DIR, recursive=True)
     observer.start()
 
-    print(f"👀 Watching: {watch_path}")
+    logger.info(f"Watching: {WATCH_DIR}")
     try:
         while True:
             time.sleep(1)
@@ -98,6 +116,5 @@ def main():
         observer.stop()
     observer.join()
 
-
 if __name__ == "__main__":
     main()