diff --git a/.gitignore b/.gitignore
index c670ee7..9eb69ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 cache/
 dist/
+postrun
diff --git a/ressources/metabase/debmaker b/ressources/metabase/debmaker
index 7649cd5..c8afa4c 100755
--- a/ressources/metabase/debmaker
+++ b/ressources/metabase/debmaker
@@ -1,14 +1,13 @@
 #!/bin/bash
 
 VERSION=0.42.3
-RELEASE=2
 
 [ -e ./lib/function.sh ] && source ./lib/function.sh
 
 APP=metabase
 DEPOT=https://github.com/metabase/metabase.git
 GIT_VERSION=v$VERSION
-DEB_VERSION=${VERSION}-${RELEASE}
+DEB_VERSION=${VERSION}-$(date +%Y%m%d%H%M)
 DEBIAN_VERSION_CODENAME=bullseye
 IMAGE_SIZE=10
 
diff --git a/ressources/metabase/rootfs/DEBIAN/conffiles b/ressources/metabase/rootfs/DEBIAN/conffiles
new file mode 100644
index 0000000..6544782
--- /dev/null
+++ b/ressources/metabase/rootfs/DEBIAN/conffiles
@@ -0,0 +1 @@
+/etc/default/metabase
diff --git a/ressources/metabase/rootfs/etc/default/metabase b/ressources/metabase/rootfs/etc/default/metabase
new file mode 100644
index 0000000..99e8bce
--- /dev/null
+++ b/ressources/metabase/rootfs/etc/default/metabase
@@ -0,0 +1,20 @@
+#https://www.metabase.com/docs/latest/operations-guide/configuring-application-database.html
+
+#MB_DB_TYPE=mysql
+#MB_DB_PORT=3306
+
+#MB_DB_TYPE=postgres
+#MB_DB_PORT=5432
+
+#MB_DB_DBNAME=metabase
+#MB_DB_USER=<username>
+#MB_DB_PASS=<password>
+#MB_DB_HOST=localhost
+
+#MB_DB_CONNECTION_URI="jdbc:postgresql://localhost:5432/metabase?user=<username>&password=<password>"
+#MB_DB_CONNECTION_URI="jdbc:mysql://localhost:3306/metabase?user=<username>&password=<password>"
+
+#https://www.metabase.com/docs/latest/operations-guide/encrypting-database-details-at-rest.html
+
+#generate with 'openssl rand -base64 32'
+#MB_ENCRYPTION_SECRET_KEY=
diff --git a/ressources/metabase/rootfs/usr/lib/systemd/system/metabase.service b/ressources/metabase/rootfs/usr/lib/systemd/system/metabase.service
index dde561d..3c4cf16 100644
--- a/ressources/metabase/rootfs/usr/lib/systemd/system/metabase.service
+++ b/ressources/metabase/rootfs/usr/lib/systemd/system/metabase.service
@@ -4,8 +4,9 @@ Description=metabase
 [Service]
 Type=exec
 User=metabase
-WorkingDirectory=/var/lib/metabase
+EnvironmentFile=-/etc/default/metabase
 ExecStart=/usr/bin/java -jar /usr/share/metabase/metabase.jar
+WorkingDirectory=/var/lib/metabase
 Restart=on-failure
 RestartSec=30s
 ReadWritePaths=/var/lib/metabase