diff --git a/config_example/config.py b/config_example/config.j2
similarity index 74%
rename from config_example/config.py
rename to config_example/config.j2
index 2c8c39d..9c9c0d3 100644
--- a/config_example/config.py
+++ b/config_example/config.j2
@@ -5,10 +5,10 @@ import report
 
 __BASEPATH__ = os.path.abspath(os.path.dirname(__file__))
 
-MQTT_SERVER = "<mqtt_smarthome_hostname>"
-MQTT_USER = "<mqtt_smarthome_username>"
-MQTT_PASS = "<mqtt_smarthome_password>"
-MQTT_TOPIC = "<mqtt_ambient_info_topic>"
+MQTT_SERVER = "{{ smart_sat_ambientinfo_hostname }}"
+MQTT_USER = "{{ smart_sat_ambientinfo_username }}"
+MQTT_PASS = "{{ smart_sat_ambientinfo_password }}"
+MQTT_TOPIC = "{{ smart_sat_ambientinfo_topic }}"
 
 DAT_PATH_DHT = None     # os.path.join(__BASEPATH__, 'dat', 'dht')
 DAT_PATH_BMP = None     # os.path.join(__BASEPATH__, 'dat', 'bmp')
diff --git a/init_venv b/init_venv
index 428ff04..83622c4 100755
--- a/init_venv
+++ b/init_venv
@@ -2,7 +2,23 @@
 #
 BASEPATH=`realpath $(dirname $0)`
 
-python3 -m venv $BASEPATH/venv
-$BASEPATH/venv/bin/pip install --upgrade pip
-find $BASEPATH -name requirements.txt | xargs -L 1 $BASEPATH/venv/bin/pip install -r
-$BASEPATH/venv/bin/pip list --outdated --format=json | jq -r '.[] | .name'|xargs -n1 $BASEPATH/venv/bin/pip install -U
+#
+# Create venv
+#
+if [[ ! -e $BASEPATH/venv ]]; then
+    python3 -m venv $BASEPATH/venv > /dev/null 2>&1
+    # $BASEPATH/venv/bin/pip install --upgrade pip
+    find $BASEPATH -name requirements.txt | xargs -L 1 $BASEPATH/venv/bin/pip install -r > /dev/null 2>&1
+    echo "venv changed"
+fi
+#
+# Update venv modules
+#
+for req_mod in $($BASEPATH/venv/bin/pip list --format=json | jq -r '.[] | .name'); do
+     $BASEPATH/venv/bin/pip install -U $req_mod | grep install > /dev/null 2>&1
+     if [[ "$?" -eq "0" ]]; then
+         echo $req_mod changed
+     fi
+
+done
+#|xargs -n1 $BASEPATH/venv/bin/pip install -U