diff --git a/src/cthulhu/plugin.py b/src/cthulhu/plugin.py
index 88a3080..e31785d 100644
--- a/src/cthulhu/plugin.py
+++ b/src/cthulhu/plugin.py
@@ -90,3 +90,9 @@ class Plugin:
                     contextName=self.module_name
                 )
         return None
+
+    def connectSignal(self, signal_name, callback):
+        """Connect to an application signal."""
+        if self.app and self.app.getSignalManager():
+            return self.app.getSignalManager().connectSignal(signal_name, callback)
+        return None
diff --git a/src/cthulhu/plugin_system_manager.py b/src/cthulhu/plugin_system_manager.py
index 581d725..6eb9dbd 100644
--- a/src/cthulhu/plugin_system_manager.py
+++ b/src/cthulhu/plugin_system_manager.py
@@ -232,6 +232,7 @@ class PluginSystemManager:
         return self._active_plugins
 
     def setActivePlugins(self, activePlugins):
+        """Set active plugins and sync their state."""
         logger.info(f"Setting active plugins: {activePlugins}")
     
         # Make sure we have scanned for plugins first
@@ -242,13 +243,13 @@ class PluginSystemManager:
         # Create a clean list of valid active plugins
         available_plugins = [p.get_module_name() for p in self.plugins]
         valid_active_plugins = []
-    
+        
         for plugin_name in activePlugins:
             # Check for exact match first
             if plugin_name in available_plugins:
                 valid_active_plugins.append(plugin_name)
                 continue
-            
+                
             # Try case-insensitive match
             plugin_name_lower = plugin_name.lower()
             matched = False
@@ -262,7 +263,7 @@ class PluginSystemManager:
                 
             if not matched:
                 logger.warning(f"Plugin '{plugin_name}' not found, skipping")
-    
+        
         # Only use valid plugins
         self._active_plugins = valid_active_plugins
         
diff --git a/src/cthulhu/plugins/hello_world/plugin.py b/src/cthulhu/plugins/hello_world/plugin.py
index 874861c..b6e170d 100644
--- a/src/cthulhu/plugins/hello_world/plugin.py
+++ b/src/cthulhu/plugins/hello_world/plugin.py
@@ -16,12 +16,12 @@ logger = logging.getLogger(__name__)
 
 class HelloWorld(Plugin):
     """Hello World plugin."""
-
+    
     def __init__(self, *args, **kwargs):
         """Initialize the plugin."""
         super().__init__(*args, **kwargs)
         logger.info("HelloWorld plugin initialized")
-
+    
     @cthulhu_hookimpl
     def activate(self, plugin=None):
         """Activate the plugin."""
@@ -31,7 +31,7 @@ class HelloWorld(Plugin):
 
         try:
             logger.info("Activating Hello World plugin")
-
+            
             # Register our keyboard shortcut
             self.registerGestureByString(
                 self.speakTest, 
@@ -41,19 +41,19 @@ class HelloWorld(Plugin):
             )
         except Exception as e:
             logger.error(f"Error activating Hello World plugin: {e}")
-
+    
     @cthulhu_hookimpl
     def deactivate(self, plugin=None):
         """Deactivate the plugin."""
         # Skip if this deactivation call isn't for us
         if plugin is not None and plugin is not self:
             return
-
+            
         try:
             logger.info("Deactivating Hello World plugin")
         except Exception as e:
             logger.error(f"Error deactivating Hello World plugin: {e}")
-
+    
     def speakTest(self, script=None, inputEvent=None):
         """Speak a test message."""
         try:
@@ -62,7 +62,7 @@ class HelloWorld(Plugin):
                     'hello world', 
                     resetStyles=False
                 )
-
+            
             return True
         except Exception as e:
             logger.error(f"Error in speakTest: {e}")