diff --git a/main.py b/main.py
index 48fb365..313b636 100644
--- a/main.py
+++ b/main.py
@@ -43,6 +43,18 @@ def cast_spell():
         auto_stop_timer.start()
         logging.info(f"Scheduled auto-stop for VNC in {AUTO_STOP_TIMEOUT_SECONDS} seconds.")
         return f"Successfully cast to Thunder.", 200
+    elif machine == "xtool":
+        logging.info("Casting to XTool.")
+        kill_vnc()  # Kill any existing VNC session first
+        cast_xtool()
+        # Restart auto-stop timer
+        if auto_stop_timer is not None and auto_stop_timer.is_alive():
+            auto_stop_timer.cancel()
+            logging.info("Cancelled previous auto-stop timer.")
+        auto_stop_timer = threading.Timer(AUTO_STOP_TIMEOUT_SECONDS, _auto_stop_vnc)
+        auto_stop_timer.start()
+        logging.info(f"Scheduled auto-stop for VNC in {AUTO_STOP_TIMEOUT_SECONDS} seconds.")
+        return f"Successfully cast to XTool.", 200
     else:
         logging.warning(f"Invalid or missing machine parameter: {machine}")
         return f"Invalid or missing 'machine' parameter. Use 'trotec' or 'thunder'.", 400
@@ -97,6 +109,21 @@ def cast_thunder():
     except Exception as e: # Catch other potential errors during Popen
         logging.error(f"An error occurred while launching VNC for Thunder with Popen: {e}")
 
+def cast_xtool():
+    """Executes the xtightvncviewer command for XTool."""
+    command = "DISPLAY=:1 xtightvncviewer -viewonly -fullscreen 172.17.17.221"
+    try:
+        logging.info(f"Launching command: {command}")
+        # Use Popen to run the command in the background (non-blocking)
+        subprocess.Popen(command, shell=True)
+        logging.info(f"Command '{command}' launched successfully.")
+    except FileNotFoundError:
+        # This error is more likely if the shell itself (e.g., /bin/sh) is not found,
+        # or if 'xtightvncviewer' is not in PATH and the shell fails to find it.
+        logging.error(f"Failed to launch VNC for XTool: Shell or VNC command might not be found. Ensure xtightvncviewer is in PATH and shell is available.")
+    except Exception as e: # Catch other potential errors during Popen
+        logging.error(f"An error occurred while launching VNC for XTool with Popen: {e}")
+
 def kill_vnc():
     """Executes the killall command for xtightvncviewer."""
     command = "killall xtightvncviewer"