diff --git a/LICENSE b/LICENSE
index a4e9dc9..cfe6111 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT No Attribution
 
-Copyright <YEAR> <COPYRIGHT HOLDER>
+Copyright 2023 angestöpselt e.V.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this
 software and associated documentation files (the "Software"), to deal in the Software
diff --git a/docker-compose.yml b/docker-compose.yml
index 5be1643..6cd772f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,9 +1,30 @@
 ---
-version: '3.2'
+version: '3.8'
 
 services:
+
+  zammad-backup:
+    command: ["zammad-backup"]
+    depends_on:
+      - zammad-railsserver
+      - zammad-postgresql
+    entrypoint: /usr/local/bin/backup.sh
+    environment:
+      - BACKUP_TIME=03:00
+      - HOLD_DAYS=10
+      - POSTGRESQL_DB=${POSTGRES_DB}
+      - POSTGRESQL_USER=${POSTGRES_USER}
+      - POSTGRESQL_PASSWORD=${POSTGRES_PASS}
+      - TZ=Europe/Berlin
+    image: postgres:${POSTGRES_VERSION}
+    restart: ${RESTART}
+    volumes:
+      - zammad-backup:/var/tmp/zammad
+      - zammad-var:/opt/zammad/var:ro
+      - ${APP_DATA}/zammad/scripts/backup.sh:/usr/local/bin/backup.sh:ro
+
   zammad-elasticsearch:
-    image: bitnami/elasticsearch:8.5.1
+    image: bitnami/elasticsearch:${ELASTICSEARCH_VERSION}
     restart: ${RESTART}
     volumes:
       - elasticsearch-data:/bitnami/elasticsearch/data
@@ -14,17 +35,17 @@ services:
       - zammad-postgresql
     environment:
       - MEMCACHE_SERVERS=${MEMCACHE_SERVERS}
-      - POSTGRESQL_USER=${POSTGRES_USER}
-      - POSTGRESQL_PASS=${POSTGRES_PASS}
       - REDIS_URL=${REDIS_URL}
     image: ${IMAGE_REPO}:${VERSION}
     restart: on-failure
+    user: 0:0
     volumes:
-      - zammad-data:/opt/zammad
+      - zammad-config-nginx:/etc/nginx/sites-enabled
+      - zammad-var:/opt/zammad/var
 
   zammad-memcached:
     command: memcached -m 256M
-    image: memcached:1.6.17-alpine
+    image: memcached:${MEMCACHE_VERSION}
     restart: ${RESTART}
 
   zammad-nginx:
@@ -36,10 +57,12 @@ services:
     image: ${IMAGE_REPO}:${VERSION}
     restart: ${RESTART}
     volumes:
-      - zammad-data:/opt/zammad
+      - zammad-config-nginx:/etc/nginx/sites-enabled:ro
+      - zammad-var:/opt/zammad/var:ro
 
   zammad-postgresql:
     environment:
+      - POSTGRES_DB=${POSTGRES_DB}
       - POSTGRES_USER=${POSTGRES_USER}
       - POSTGRES_PASSWORD=${POSTGRES_PASS}
     image: postgres:${POSTGRES_VERSION}
@@ -59,11 +82,13 @@ services:
     image: ${IMAGE_REPO}:${VERSION}
     restart: ${RESTART}
     volumes:
-      - zammad-data:/opt/zammad
+      - zammad-var:/opt/zammad/var
 
   zammad-redis:
-    image: redis:7.0.5-alpine
+    image: redis:${REDIS_VERSION}
     restart: ${RESTART}
+    volumes:
+      - redis-data:/data
 
   zammad-scheduler:
     command: ["zammad-scheduler"]
@@ -77,7 +102,7 @@ services:
     image: ${IMAGE_REPO}:${VERSION}
     restart: ${RESTART}
     volumes:
-      - zammad-data:/opt/zammad
+      - zammad-var:/opt/zammad/var
 
   zammad-websocket:
     command: ["zammad-websocket"]
@@ -91,14 +116,18 @@ services:
     image: ${IMAGE_REPO}:${VERSION}
     restart: ${RESTART}
     volumes:
-      - zammad-data:/opt/zammad
+      - zammad-var:/opt/zammad/var
 
 volumes:
   elasticsearch-data:
     driver: local
   postgresql-data:
     driver: local
+  redis-data:
+    driver: local
   zammad-backup:
     driver: local
-  zammad-data:
+  zammad-config-nginx:
     driver: local
+  zammad-var:
+    driver: local
\ No newline at end of file