diff --git a/README.md b/README.md
index a87edd5..00a71c8 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,8 @@ display.
 
 **Note:** For `EPD_TYPE`, refer to the `epd/epd_config.py` file for a full list
 of supported display types and their corresponding string labels. For color
-displays, ensure `DITHERING_MODE` is set to `color`. The bot
+displays, ensure `DITHERING_MODE` is set to `color`. `ALLOWED_USER` is optional;
+if set, the bot will only fetch images uploaded by that specific user. The bot
 will retry a maximum of 100 times to find a valid image (matching the user filter,
 if provided) before giving up.
 
diff --git a/docker-compose.yml b/docker-compose.yml
index d6cf386..04b615a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,9 +5,10 @@ services:
     build: .
     container_name: szuru-eink-bot
     environment:
+      - ALLOWED_USER=YOUR_ALLOWED_USER # optional: only fetch images from this user
+      - DITHERING_MODE=YOUR_DITHERING_MODE # e.g., mono, color
+      - EINK_IP=YOUR_EINK_IP
+      - EPD_TYPE=YOUR_EPD_TYPE # e.g., '7.5 V2', 5.65f
+      - SZURU_TOKEN=YOUR_SZURU_TOKEN
       - SZURU_URL=YOUR_SZURU_URL
       - SZURU_USER=YOUR_SZURU_USER
-      - SZURU_TOKEN=YOUR_SZURU_TOKEN
-      - EPD_TYPE=YOUR_EPD_TYPE # e.g., '7.5 V2', 5.65f
-      - EINK_IP=YOUR_EINK_IP
-      - DITHERING_MODE=YOUR_DITHERING_MODE # e.g., mono, color
diff --git a/szuru-eink.py b/szuru-eink.py
index cbed386..b9f4271 100644
--- a/szuru-eink.py
+++ b/szuru-eink.py
@@ -19,6 +19,7 @@ try:
     szuru_url = os.environ["SZURU_URL"]
     szuru_user = os.environ["SZURU_USER"]
     szuru_token = os.environ["SZURU_TOKEN"]
+    allowed_user = os.getenv("ALLOWED_USER")
 except KeyError as e:
     raise ValueError(f"Missing required environment variable: {e}")
 
@@ -41,8 +42,19 @@ while post is None and retries < MAX_RETRIES:
         continue
 
     if temp_post and temp_post.mime.startswith("image/") and temp_post.content:
+        # User info is in _json['user']['name']
+        post_user = temp_post._json.get("user", {}).get("name", "Unknown")
+
+        if allowed_user and post_user != allowed_user:
+            print(
+                f"[DEBUG] Skipping post ID: {random_id} - uploaded by {post_user}, but only {allowed_user} is allowed. (Retry {retries + 1}/{MAX_RETRIES})"
+            )
+            retries += 1
+            continue
         post = temp_post
-        print(f"[DEBUG] Found image post with ID: {post.id_}, MIME: {post.mime}")
+        print(
+            f"[DEBUG] Found image post with ID: {post.id_}, MIME: {post.mime} (User: {post_user})"
+        )
     else:
         print(
             f"[DEBUG] Skipping post ID: {random_id} (MIME: {temp_post.mime if temp_post else 'None'}, Content: {bool(temp_post.content) if temp_post else 'None'}) - not a valid image. (Retry {retries + 1}/{MAX_RETRIES})"
@@ -91,9 +103,17 @@ while not image_downloaded:
                 continue
 
             if temp_post and temp_post.mime.startswith("image/") and temp_post.content:
+                post_user = temp_post._json.get("user", {}).get("name", "Unknown")
+
+                if allowed_user and post_user != allowed_user:
+                    print(
+                        f"[DEBUG] Skipping post ID: {random_id} - uploaded by {post_user}, but only {allowed_user} is allowed. (Retry {retries + 1}/{MAX_RETRIES})"
+                    )
+                    retries += 1
+                    continue
                 post = temp_post
                 print(
-                    f"[DEBUG] Found new image post with ID: {post.id_}, MIME: {post.mime}"
+                    f"[DEBUG] Found new image post with ID: {post.id_}, MIME: {post.mime} (User: {post_user})"
                 )
             else:
                 print(