diff --git a/boon_tube_daemon/main.py b/boon_tube_daemon/main.py
index 8639dc1..0638528 100644
--- a/boon_tube_daemon/main.py
+++ b/boon_tube_daemon/main.py
@@ -179,6 +179,11 @@ def check_platforms(self):
                             logger.info(f"   ⏱ Waiting {multi_video_delay}s before posting next video...")
                             time.sleep(multi_video_delay)
                         self.notify_new_video(platform, video_data)
+                        # Persist progress after each video so an interrupted batch
+                        # resumes from the next unposted video instead of skipping
+                        # the remainder if the process is killed mid-batch.
+                        if hasattr(platform, 'mark_posted'):
+                            platform.mark_posted(video_data)
                 else:
                     # Legacy single-video path (TikTok etc.)
                     is_new, video_data = platform.check_for_new_video()
diff --git a/boon_tube_daemon/media/youtube_videos.py b/boon_tube_daemon/media/youtube_videos.py
index 8107df7..77986b2 100644
--- a/boon_tube_daemon/media/youtube_videos.py
+++ b/boon_tube_daemon/media/youtube_videos.py
@@ -90,6 +90,18 @@ def _save_state(self):
             logger.debug(f"💾 Saved YouTube state to {state_file}")
         except Exception as e:
             logger.warning("⚠ Could not save YouTube state")
+
+    def mark_posted(self, video_data: dict):
+        """Advance and persist the last-posted marker after a video is posted.
+
+        Called by the daemon after each video is successfully handled so that an
+        interrupted batch resumes from the next unposted video rather than
+        silently skipping the remainder.
+        """
+        video_id = video_data.get('video_id')
+        if video_id:
+            self.last_video_id = video_id
+            self._save_state()
         
     def authenticate(self) -> bool:
         """Authenticate with YouTube API."""
@@ -444,9 +456,10 @@ def check_for_new_videos(self, username: Optional[str] = None) -> List[dict]:
         if len(new_videos) > 1:
             logger.info(f"📦 YouTube: {len(new_videos)} new videos detected since last check")
         
-        # Update state to newest
-        self.last_video_id = newest_id
-        self._save_state()
+        # NOTE: Do NOT advance last_video_id here. State is advanced per-video via
+        # mark_posted() after each video is successfully posted, so an interrupted
+        # batch (e.g. container restart) resumes from the next unposted video
+        # instead of silently skipping the remainder.
         return new_videos
     
     def _resolve_channel_id(self, username: str) -> Optional[str]: