Update debian/changelog for v2.0.0 production release

Version bump:
- Update VERSION to 2.0.0 (from 2.0.0-dev)
- Update pyproject.toml to 2.0.0
- Change development status to Production/Stable

Documentation updates:
- Add Debian package installation instructions (system-wide)
- Add sensor discovery and approval workflow documentation
- Update configuration section with approval workflow
- Update service management for system installation
- Update troubleshooting for system installation
- Update MQTT settings documentation
- Add links to download Debian packages from releases

The application is now production-ready with:
- Systemd integration for automatic service management
- Automatic startup and restart on failure
- Configuration via /etc/sensorpajen/
- Runtime state in /var/lib/sensorpajen/
- Interactive sensor approval workflow
- Automatic configuration reload
- Comprehensive logging via journalctl

VERSION

@@ -1 +1 @@
-2.0.0-dev
+2.0.0

debian/changelog

@@ -1,9 +1,19 @@
+sensorpajen (2.0.0) stable; urgency=medium
+
+  * Production release v2.0.0
+  * Modernized service architecture with systemd
+  * Automatic sensor discovery and approval workflow
+  * Fixed state directory for discovered_sensors.json
+  * Improved documentation with installation guide
+  * Bytecode cleanup in postinst for clean installs
+
+ -- Fredrik <fredrik@wahlberg.se>  Sun, 28 Dec 2025 10:56:00 +0100
+
 sensorpajen (2.0.0-dev) unstable; urgency=medium
 
   * Initial Debian package release
   * Modernized service architecture with systemd
   * Automatic sensor discovery and approval workflow
-  * Environment-based configuration (no .ini files)
-  * System-wide installation with dedicated user
 
- -- Fredrik <fredrik@wahlberg.se>  Fri, 27 Dec 2025 00:00:00 +0000
+ -- Fredrik <fredrik@wahlberg.se>  Sun, 28 Dec 2025 09:00:00 +0100
+

debian/files

@@ -1,2 +1 @@
 sensorpajen_2.0.0-dev_all.deb misc optional
-sensorpajen_2.0.0-dev_amd64.buildinfo misc optional

debian/postinst

@@ -14,8 +14,13 @@ case "$1" in
         chown sensorpajen:sensorpajen /etc/sensorpajen
         chmod 750 /etc/sensorpajen
 
+        # Create state directory with proper permissions (writable at runtime)
+        mkdir -p /var/lib/sensorpajen
+        chown sensorpajen:sensorpajen /var/lib/sensorpajen
+        chmod 750 /var/lib/sensorpajen
+
         # Copy example configs to /etc/sensorpajen if they don't exist
-        for sample in sensorpajen.env.example sensors.json.example discovered_sensors.json.example; do
+        for sample in sensorpajen.env.example sensors.json.example; do
             source_file="/usr/share/doc/sensorpajen/examples/$sample"
             target_file="/etc/sensorpajen/${sample%.example}"
             
@@ -48,7 +53,7 @@ case "$1" in
             venv/bin/pip install -r /opt/sensorpajen/requirements.txt
         else
             echo "Warning: requirements.txt not found, installing bluepy and paho-mqtt directly"
-            venv/bin/pip install bluepy paho-mqtt
+            venv/bin/pip install bluepy paho-mqtt pybluez
         fi
         
         if [ $? -ne 0 ]; then
@@ -56,6 +61,18 @@ case "$1" in
             exit 1
         fi
 
+        # Install sensorpajen package itself
+        echo "Installing sensorpajen application..."
+        cd /opt/sensorpajen
+        # Clean up any stale bytecode before building wheel
+        find . -name "*.pyc" -delete
+        find . -name "__pycache__" -type d -delete
+        venv/bin/pip install --no-deps . || {
+            echo "Error: Failed to install sensorpajen package"
+            exit 1
+        }
+        cd /
+
         # Set ownership of application directory BEFORE setting capabilities
         chown -R sensorpajen:sensorpajen /opt/sensorpajen
 

debian/sensorpajen.service

@@ -26,7 +26,7 @@ SyslogIdentifier=sensorpajen
 PrivateTmp=true
 ProtectSystem=strict
 ProtectHome=true
-ReadWritePaths=/etc/sensorpajen
+ReadWritePaths=/etc/sensorpajen /var/lib/sensorpajen
 
 [Install]
 WantedBy=multi-user.target

debian/sensorpajen/DEBIAN/control

@@ -2,7 +2,7 @@ Package: sensorpajen
 Version: 2.0.0-dev
 Architecture: all
 Maintainer: Fredrik <fredrik@wahlberg.se>
-Installed-Size: 110
+Installed-Size: 112
 Depends: python3 (>= 3.9), python3-venv, python3-pip, bluetooth, bluez, libcap2-bin
 Recommends: mosquitto-clients
 Section: misc

debian/sensorpajen/DEBIAN/md5sums

@@ -2,18 +2,18 @@
 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
+3c6c65213de874065f81b7b3d8948c8b  opt/sensorpajen/src/sensorpajen/approve_sensors.py
-da40d9df301d523d517d7cf2809d6f11  opt/sensorpajen/src/sensorpajen/config.py
+f69225e19918cca05351fa2da8fd7618  opt/sensorpajen/src/sensorpajen/config.py
 65c63383dde4f0b249b708f854ec75a3  opt/sensorpajen/src/sensorpajen/discovery_manager.py
-592f8a534833c9e403967fcc0ead8eb1  opt/sensorpajen/src/sensorpajen/main.py
+7604c2bc0a854d6d43ff0f0646386fc5  opt/sensorpajen/src/sensorpajen/main.py
 331bf9b314492acc6ce03896367f3cf6  opt/sensorpajen/src/sensorpajen/mqtt_publisher.py
 5f4ea191e35ce092f39ec0a4f663cb38  opt/sensorpajen/src/sensorpajen/sensor_reader.py
 c8dd8fe8fc174a9cd35251fdf80e7b5f  opt/sensorpajen/src/sensorpajen/utils.py
-c9c22f9c1d65bfafd89fa45f16b7192b  usr/lib/systemd/system/sensorpajen.service
+b9ad3ea8307d8ed8e938da37ad00f229  usr/lib/systemd/system/sensorpajen.service
 4ddb9618c940286f91df901ec818959a  usr/share/doc/sensorpajen/INSTALL.md.gz
 bd2f1371c60af415bc9d0dbc1111184d  usr/share/doc/sensorpajen/ROADMAP.md.gz
 380e8e6b01b757ceac05bc5805844ae4  usr/share/doc/sensorpajen/changelog.Debian.gz
 14152a98d7cd7fe8daf280aacc4cbf3f  usr/share/doc/sensorpajen/examples/discovered_sensors.json.example
-387cb9ee7f22570312604e2cc07ca7a0  usr/share/doc/sensorpajen/examples/sensorpajen.env.example
+74c99b732363f93f0a1c134e1a8c3d35  usr/share/doc/sensorpajen/examples/sensorpajen.env.example
 292efbddd951c39cb2c9546d5fac5e05  usr/share/doc/sensorpajen/examples/sensors.json.example
 5f647c63bfc3b174611694779fd215e0  usr/share/doc/sensorpajen/readme.md.gz

debian/sensorpajen/DEBIAN/postinst

@@ -14,8 +14,13 @@ case "$1" in
         chown sensorpajen:sensorpajen /etc/sensorpajen
         chmod 750 /etc/sensorpajen
 
+        # Create state directory with proper permissions (writable at runtime)
+        mkdir -p /var/lib/sensorpajen
+        chown sensorpajen:sensorpajen /var/lib/sensorpajen
+        chmod 750 /var/lib/sensorpajen
+
         # Copy example configs to /etc/sensorpajen if they don't exist
-        for sample in sensorpajen.env.example sensors.json.example discovered_sensors.json.example; do
+        for sample in sensorpajen.env.example sensors.json.example; do
             source_file="/usr/share/doc/sensorpajen/examples/$sample"
             target_file="/etc/sensorpajen/${sample%.example}"
             
@@ -48,7 +53,7 @@ case "$1" in
             venv/bin/pip install -r /opt/sensorpajen/requirements.txt
         else
             echo "Warning: requirements.txt not found, installing bluepy and paho-mqtt directly"
-            venv/bin/pip install bluepy paho-mqtt
+            venv/bin/pip install bluepy paho-mqtt pybluez
         fi
         
         if [ $? -ne 0 ]; then
@@ -56,6 +61,18 @@ case "$1" in
             exit 1
         fi
 
+        # Install sensorpajen package itself
+        echo "Installing sensorpajen application..."
+        cd /opt/sensorpajen
+        # Clean up any stale bytecode before building wheel
+        find . -name "*.pyc" -delete
+        find . -name "__pycache__" -type d -delete
+        venv/bin/pip install --no-deps . || {
+            echo "Error: Failed to install sensorpajen package"
+            exit 1
+        }
+        cd /
+
         # Set ownership of application directory BEFORE setting capabilities
         chown -R sensorpajen:sensorpajen /opt/sensorpajen
 

debian/sensorpajen/opt/sensorpajen/src/sensorpajen/approve_sensors.py

@@ -153,8 +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)
+        print(f"✅ Marked as approved in discovered_sensors.json")
         
     except Exception as e:
         print(f"\n❌ Error saving to sensors.json: {e}")
@@ -172,7 +174,7 @@ 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}")
 

debian/sensorpajen/opt/sensorpajen/src/sensorpajen/config.py

@@ -15,14 +15,19 @@ 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')
+    STATE_DIR = Path('/var/lib/sensorpajen')
 else:
     # Development installation (3 levels up from this file: src/sensorpajen/config.py)
     PROJECT_ROOT = Path(__file__).parent.parent.parent
     CONFIG_DIR = PROJECT_ROOT / "config"
+    STATE_DIR = CONFIG_DIR
 
 # MQTT Configuration from environment
 MQTT_HOST = os.environ.get("MQTT_HOST")
@@ -63,7 +68,7 @@ NTFY_TOKEN = os.environ.get("NTFY_TOKEN", "")
 # Discovery settings
 DISCOVERED_SENSORS_FILE = os.environ.get(
     "DISCOVERED_SENSORS_FILE",
-    str(CONFIG_DIR / "discovered_sensors.json")
+    str(STATE_DIR / "discovered_sensors.json")
 )
 CONFIG_RELOAD_INTERVAL = int(os.environ.get("CONFIG_RELOAD_INTERVAL", "900"))  # 15 minutes
 
@@ -85,11 +90,11 @@ class SensorConfig:
     def load(self):
         """Load sensor configuration from JSON file."""
         if not self.config_file.exists():
-            raise FileNotFoundError(
+            logger.warning(
                 f"Sensor configuration file not found: {self.config_file}\n"
-                f"Please copy config/sensors.json.example to config/sensors.json "
+                f"Starting with no sensors - use discovery to add sensors"
-                f"and configure your sensors."
             )
+            return
         
         try:
             with open(self.config_file, 'r') as f:
@@ -138,6 +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}")

debian/sensorpajen/opt/sensorpajen/src/sensorpajen/main.py

@@ -125,9 +125,9 @@ class Sensorpajen:
             self.sensor_config = config.SensorConfig()
             
             if len(self.sensor_config.sensors) == 0:
-                self.logger.error("No sensors configured!")
+                self.logger.warning("No sensors configured")
-                self.logger.error("Please configure sensors in config/sensors.json")
+                self.logger.warning("Starting in discovery-only mode")
-                sys.exit(1)
+                self.logger.warning("Use 'sensorpajen approve-sensors' to add sensors")
             
             # Initialize discovery manager
             self.logger.info("Initializing discovery manager...")

debian/sensorpajen/usr/lib/systemd/system/sensorpajen.service

@@ -26,7 +26,7 @@ SyslogIdentifier=sensorpajen
 PrivateTmp=true
 ProtectSystem=strict
 ProtectHome=true
-ReadWritePaths=/etc/sensorpajen
+ReadWritePaths=/etc/sensorpajen /var/lib/sensorpajen
 
 [Install]
 WantedBy=multi-user.target

debian/sensorpajen/usr/share/doc/sensorpajen/examples/sensorpajen.env.example

@@ -5,9 +5,16 @@ MQTT_USER=hasse
 MQTT_PASSWORD=casablanca
 MQTT_CLIENT_ID=mibridge
 
-# Sensor Configuration (relative to project root)
+# Sensor Configuration
-SENSOR_CONFIG_FILE=config/sensors.json
+# For system installation (/opt/sensorpajen): Use absolute paths
-DISCOVERED_SENSORS_FILE=config/discovered_sensors.json
+# SENSOR_CONFIG_FILE=/etc/sensorpajen/sensors.json
+# DISCOVERED_SENSORS_FILE=/etc/sensorpajen/discovered_sensors.json
+#
+# For development installation: Use relative paths (from project root)
+# SENSOR_CONFIG_FILE=config/sensors.json
+# DISCOVERED_SENSORS_FILE=config/discovered_sensors.json
+#
+# If not set, defaults will be used based on installation type
 
 # Application Settings
 WATCHDOG_TIMEOUT=5

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "sensorpajen"
-version = "2.0.0-dev"
+version = "2.0.0"
 description = "Bluetooth temperature sensor monitor for Xiaomi Mijia LYWSD03MMC"
 readme = "README.md"
 requires-python = ">=3.9"
@@ -14,7 +14,7 @@ authors = [
 ]
 keywords = ["bluetooth", "temperature", "sensor", "mqtt", "raspberry-pi"]
 classifiers = [
-    "Development Status :: 4 - Beta",
+    "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",

readme.md

@@ -22,48 +22,72 @@ Raspberry Pi service that monitors Xiaomi Mijia LYWSD03MMC Bluetooth temperature
 
 ## Installation
 
-See [INSTALL.md](INSTALL.md) for complete installation instructions.
+### System Installation (Debian Package - Recommended for Raspberry Pi)
 
-### Quick Start
+The easiest way to install on Raspberry Pi OS is using the pre-built Debian package:
 
 ```bash
-# Clone repository
+# Download the latest release
-git clone <repo-url> ~/sensorpajen
+wget https://gitea.wahlberg.se/api/v1/repos/fredrik/sensorpajen/releases/download/v2.0.0/sensorpajen_2.0.0_all.deb
-cd ~/sensorpajen
 
-# Create and activate virtual environment
+# Install
-python3 -m venv .venv
+sudo dpkg -i sensorpajen_2.0.0_all.deb
-source .venv/bin/activate
-
-# Install dependencies
-pip install -e .
 
 # Configure
-cp config/sensorpajen.env.example config/sensorpajen.env
+sudo nano /etc/sensorpajen/sensorpajen.env  # Edit MQTT settings
-cp config/sensors.json.example config/sensors.json
+sudo systemctl restart sensorpajen
-nano config/sensorpajen.env  # Edit MQTT settings
-nano config/sensors.json     # Edit sensor MAC addresses
 
-# Set Bluetooth capabilities
+# View logs
-sudo setcap 'cap_net_raw,cap_net_admin+eip' $(readlink -f .venv/bin/python3)
+sudo journalctl -u sensorpajen -f
-
-# Install systemd service
-mkdir -p ~/.config/systemd/user/
-cp systemd/sensorpajen.service ~/.config/systemd/user/
-systemctl --user daemon-reload
-sudo loginctl enable-linger $USER
-
-# Start service
-systemctl --user enable sensorpajen
-systemctl --user start sensorpajen
-
-# Check status
-systemctl --user status sensorpajen
-journalctl --user -u sensorpajen -f
 ```
 
+The system package installs:
+- Application in `/opt/sensorpajen/`
+- Configuration in `/etc/sensorpajen/`
+- Runtime state in `/var/lib/sensorpajen/`
+- Systemd service (runs automatically)
+
+### Development Installation
+
+See [INSTALL.md](INSTALL.md) for complete development setup.
+
 ## Configuration
 
+### Quick Setup
+
+After installation, configure your MQTT broker and sensors:
+
+```bash
+# Edit MQTT settings
+sudo nano /etc/sensorpajen/sensorpajen.env
+
+# Restart service to apply changes
+sudo systemctl restart sensorpajen
+```
+
+### Approving Sensors (Discovery Workflow)
+
+The service automatically discovers nearby Bluetooth sensors and stores them in a pending list. You approve which ones to monitor:
+
+```bash
+# Start sensor discovery (if not already running)
+sudo systemctl start sensorpajen
+
+# Let it scan for a minute or two to discover sensors
+sleep 120
+
+# View discovered sensors and approve them
+sudo sensorpajen approve-sensors
+```
+
+The approval CLI will:
+1. Show newly discovered sensors with their current readings
+2. Ask you to approve, ignore, or skip each sensor
+3. Save approved sensors to `/etc/sensorpajen/sensors.json`
+4. Mark their status in `/var/lib/sensorpajen/discovered_sensors.json`
+
+When you approve a sensor, it's added to your configuration and the service automatically starts monitoring it.
+
 ### MQTT Settings
 
 Edit `config/sensorpajen.env`:
@@ -71,7 +95,7 @@ Edit `config/sensorpajen.env`:
 ```bash
 MQTT_HOST=192.168.1.10
 MQTT_PORT=1883
-MQTT_USERNAME=username
+MQTT_USER=username
 MQTT_PASSWORD=password
 MQTT_CLIENT_ID=sensorpajen
 MQTT_TOPIC_PREFIX=MiTemperature2
@@ -79,42 +103,52 @@ MQTT_TOPIC_PREFIX=MiTemperature2
 
 ### Sensors
 
-Edit `config/sensors.json`:
+Sensors are automatically managed via the approval workflow. You can also manually edit `/etc/sensorpajen/sensors.json`:
 
 ```json
-[
+{
-  {
+  "sensors": [
-    "mac": "A4:C1:38:12:34:56",
+    {
-    "name": "Living Room"
+      "mac": "A4:C1:38:12:34:56",
-  },
+      "name": "Living Room"
-  {
+    },
-    "mac": "A4:C1:38:AB:CD:EF",
+    {
-    "name": "Bedroom"
+      "mac": "A4:C1:38:AB:CD:EF",
-  }
+      "name": "Bedroom"
-]
+    }
-```
+  ]
+}
 
 ## Service Management
 
-See [systemd/README.md](systemd/README.md) for detailed service management instructions.
+### System Installation (Debian Package)
 
 ```bash
 # Start/stop service
-systemctl --user start sensorpajen
+sudo systemctl start sensorpajen
-systemctl --user stop sensorpajen
+sudo systemctl stop sensorpajen
 
 # Enable/disable autostart
-systemctl --user enable sensorpajen
+sudo systemctl enable sensorpajen
-systemctl --user disable sensorpajen
+sudo systemctl disable sensorpajen
 
 # View status
-systemctl --user status sensorpajen
+sudo systemctl status sensorpajen
 
-# View logs
+# View logs (live)
-journalctl --user -u sensorpajen -f
+sudo journalctl -u sensorpajen -f
-journalctl --user -u sensorpajen -n 100
+
+# View last 50 log lines
+sudo journalctl -u sensorpajen -n 50
+
+# Uninstall
+sudo dpkg -r sensorpajen
+# Note: Configuration is preserved in /etc/sensorpajen/
+# To remove config: sudo rm -rf /etc/sensorpajen/
 ```
 
+### Development Installation
+
 ## Flashing New Thermometers
 
 **Important**: Flash only one thermometer at a time!
@@ -158,27 +192,40 @@ sensorpajen/
 
 ## Troubleshooting
 
-See [INSTALL.md](INSTALL.md#troubleshooting) for detailed troubleshooting steps.
+### System Installation (Debian Package)
 
-### Quick Checks
+**Service won't start:**
-
-**Permission errors:**
 ```bash
-sudo setcap 'cap_net_raw,cap_net_admin+eip' $(readlink -f ~/sensorpajen/.venv/bin/python3)
+# Check what's wrong
-systemctl --user restart sensorpajen
+sudo journalctl -u sensorpajen -n 50
+
+# Check configuration is valid
+sudo cat /etc/sensorpajen/sensorpajen.env
+
+# Manually test the application
+sudo /opt/sensorpajen/venv/bin/python -m sensorpajen.main
 ```
 
-**Service status:**
+**MQTT connection issues:**
 ```bash
-systemctl --user status sensorpajen
+# Verify MQTT settings in the log
-journalctl --user -u sensorpajen -f
+sudo journalctl -u sensorpajen | grep MQTT
-```
 
-**MQTT test:**
+# Test MQTT connection manually
-```bash
 mosquitto_sub -h <MQTT_HOST> -u <USER> -P <PASSWORD> -t "MiTemperature2/#" -v
 ```
 
+**Sensor not found:**
+```bash
+# Run sensor discovery
+sudo sensorpajen approve-sensors
+
+# Check discovered sensors
+sudo cat /var/lib/sensorpajen/discovered_sensors.json | jq '.'
+```
+
+### Development Installation
+
 ## Development
 
 ```bash

src/sensorpajen/approve_sensors.py

@@ -153,8 +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)
+        print(f"✅ Marked as approved in discovered_sensors.json")
         
     except Exception as e:
         print(f"\n❌ Error saving to sensors.json: {e}")
@@ -172,7 +174,7 @@ 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}")
 

src/sensorpajen/config.py

@@ -15,14 +15,19 @@ 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')
+    STATE_DIR = Path('/var/lib/sensorpajen')
 else:
     # Development installation (3 levels up from this file: src/sensorpajen/config.py)
     PROJECT_ROOT = Path(__file__).parent.parent.parent
     CONFIG_DIR = PROJECT_ROOT / "config"
+    STATE_DIR = CONFIG_DIR
 
 # MQTT Configuration from environment
 MQTT_HOST = os.environ.get("MQTT_HOST")
@@ -63,7 +68,7 @@ NTFY_TOKEN = os.environ.get("NTFY_TOKEN", "")
 # Discovery settings
 DISCOVERED_SENSORS_FILE = os.environ.get(
     "DISCOVERED_SENSORS_FILE",
-    str(CONFIG_DIR / "discovered_sensors.json")
+    str(STATE_DIR / "discovered_sensors.json")
 )
 CONFIG_RELOAD_INTERVAL = int(os.environ.get("CONFIG_RELOAD_INTERVAL", "900"))  # 15 minutes
 
@@ -138,6 +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}")