diff --git a/debian/sensorpajen/DEBIAN/md5sums b/debian/sensorpajen/DEBIAN/md5sums
index a05ea3f..4c3efdb 100644
--- a/debian/sensorpajen/DEBIAN/md5sums
+++ b/debian/sensorpajen/DEBIAN/md5sums
@@ -2,8 +2,8 @@
 0894789523a53bb372980c0906a7d0b5  opt/sensorpajen/requirements.txt
 940d73f24eb9f971ce27f9355e3072f3  opt/sensorpajen/scripts/approve-sensors.sh
 20eb4f3839b990a530410768897402c0  opt/sensorpajen/src/sensorpajen/__init__.py
-1f452c46e42f8dc3751dba6ca68256e9  opt/sensorpajen/src/sensorpajen/approve_sensors.py
-8d781ed202be540358a970c2be50f54d  opt/sensorpajen/src/sensorpajen/config.py
+63d6137fbf2f37c5f394a364da70f611  opt/sensorpajen/src/sensorpajen/approve_sensors.py
+f69225e19918cca05351fa2da8fd7618  opt/sensorpajen/src/sensorpajen/config.py
 65c63383dde4f0b249b708f854ec75a3  opt/sensorpajen/src/sensorpajen/discovery_manager.py
 7604c2bc0a854d6d43ff0f0646386fc5  opt/sensorpajen/src/sensorpajen/main.py
 331bf9b314492acc6ce03896367f3cf6  opt/sensorpajen/src/sensorpajen/mqtt_publisher.py
diff --git a/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/approve_sensors.py b/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/approve_sensors.py
index a7370e3..6f7df87 100644
--- a/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/approve_sensors.py
+++ b/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/approve_sensors.py
@@ -153,16 +153,10 @@ def approve_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
         print(f"   Name: {name}")
         print(f"   Configuration will be reloaded automatically within 15 minutes")
         
-        # Mark as approved in discovery manager
+        # Mark as approved in discovery manager and save
+        print(f"\nUpdating discovery status...")
         manager.approve(sensor.mac)
-        
-    except Exception as e:
-        print(f"\n❌ Error saving to sensors.json: {e}")
-
-
-def ignore_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
-    """
-    Ignore a sensor.
+        print(f"✅ Marked as approved in discovered_sensors.json")
     
     Args:
         sensor: Sensor to ignore
@@ -172,7 +166,7 @@ def ignore_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
     
     manager.ignore(sensor.mac, reason if reason else None)
     
-    print(f"\n✅ Sensor ignored")
+    print(f"\n✅ Sensor ignored and marked in discovered_sensors.json")
     if reason:
         print(f"   Reason: {reason}")
 
diff --git a/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/config.py b/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/config.py
index 85e636c..c5297a6 100644
--- a/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/config.py
+++ b/debian/sensorpajen/opt/sensorpajen/src/sensorpajen/config.py
@@ -15,7 +15,10 @@ logger = logging.getLogger(__name__)
 
 # Determine project root and config directory
 # Check if running from system installation (/opt/sensorpajen) or development
-if Path('/opt/sensorpajen').exists():
+_opt_sensorpajen_exists = Path('/opt/sensorpajen').exists()
+_var_lib_exists = Path('/var/lib/sensorpajen').exists()
+
+if _opt_sensorpajen_exists:
     # System installation
     PROJECT_ROOT = Path('/opt/sensorpajen')
     CONFIG_DIR = Path('/etc/sensorpajen')
@@ -140,6 +143,7 @@ def validate_config():
     logger.info(f"Installation Type: {install_type}")
     logger.info(f"Project Root: {PROJECT_ROOT}")
     logger.info(f"Config Directory: {CONFIG_DIR}")
+    logger.info(f"State Directory: {STATE_DIR}")
     logger.info(f"MQTT Host: {MQTT_HOST}:{MQTT_PORT}")
     logger.info(f"MQTT User: {MQTT_USER}")
     logger.info(f"MQTT Client ID: {MQTT_CLIENT_ID}")
diff --git a/src/sensorpajen/approve_sensors.py b/src/sensorpajen/approve_sensors.py
index a7370e3..6f7df87 100644
--- a/src/sensorpajen/approve_sensors.py
+++ b/src/sensorpajen/approve_sensors.py
@@ -153,16 +153,10 @@ def approve_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
         print(f"   Name: {name}")
         print(f"   Configuration will be reloaded automatically within 15 minutes")
         
-        # Mark as approved in discovery manager
+        # Mark as approved in discovery manager and save
+        print(f"\nUpdating discovery status...")
         manager.approve(sensor.mac)
-        
-    except Exception as e:
-        print(f"\n❌ Error saving to sensors.json: {e}")
-
-
-def ignore_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
-    """
-    Ignore a sensor.
+        print(f"✅ Marked as approved in discovered_sensors.json")
     
     Args:
         sensor: Sensor to ignore
@@ -172,7 +166,7 @@ def ignore_sensor(sensor: DiscoveredSensor, manager: DiscoveryManager):
     
     manager.ignore(sensor.mac, reason if reason else None)
     
-    print(f"\n✅ Sensor ignored")
+    print(f"\n✅ Sensor ignored and marked in discovered_sensors.json")
     if reason:
         print(f"   Reason: {reason}")
 
diff --git a/src/sensorpajen/config.py b/src/sensorpajen/config.py
index 85e636c..c5297a6 100644
--- a/src/sensorpajen/config.py
+++ b/src/sensorpajen/config.py
@@ -15,7 +15,10 @@ logger = logging.getLogger(__name__)
 
 # Determine project root and config directory
 # Check if running from system installation (/opt/sensorpajen) or development
-if Path('/opt/sensorpajen').exists():
+_opt_sensorpajen_exists = Path('/opt/sensorpajen').exists()
+_var_lib_exists = Path('/var/lib/sensorpajen').exists()
+
+if _opt_sensorpajen_exists:
     # System installation
     PROJECT_ROOT = Path('/opt/sensorpajen')
     CONFIG_DIR = Path('/etc/sensorpajen')
@@ -140,6 +143,7 @@ def validate_config():
     logger.info(f"Installation Type: {install_type}")
     logger.info(f"Project Root: {PROJECT_ROOT}")
     logger.info(f"Config Directory: {CONFIG_DIR}")
+    logger.info(f"State Directory: {STATE_DIR}")
     logger.info(f"MQTT Host: {MQTT_HOST}:{MQTT_PORT}")
     logger.info(f"MQTT User: {MQTT_USER}")
     logger.info(f"MQTT Client ID: {MQTT_CLIENT_ID}")