diff --git a/README.md b/README.md
index c7b3cd7..457ffc2 100644
--- a/README.md
+++ b/README.md
@@ -13,10 +13,15 @@
 [![buddy pipeline](https://buddy.kicktemp.com/kicktemp/com-sportsmanager/pipelines/pipeline/174/badge.svg?token=8baa7fbc7039a8f3bb2b0cf06a1365e3ad1e9b20e48db86168c0bbf82611173d "buddy pipeline")](https://buddy.kicktemp.com/kicktemp/com-sportsmanager/pipelines/pipeline/174) [Preview: kickern-hamburg.de](https://kickern-hamburg.de)
 
 ## local dev environment
-- install docker
-- docker-compose up
+
+### prerequisite
+
+[get docker](https://docs.docker.com/get-docker/)
+### prepare / restore data
+
+- `docker compose up -d`
 - in data/joomla_data/ die kickstarter datei von akeeba ablegen und das backup von der dtfb seite
   - https://www.akeeba.com/download/akeeba-kickstart/7-1-2/kickstart-core-7-1-2-zip.raw
-  - das auspacke
+  - [Anleitung](https://www.siteground.com/kb/how_to_extract_and_restore_a_joomla_jpa_archive_or_backup/)
 - localhost/kickstart.php aufrufen
 
diff --git a/docker-compose.yml b/docker-compose.yml
index f6b04df..f0255fe 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,9 @@
 version: '2'
 services:
   mariadb:
-    image: docker.io/bitnami/mariadb:10.6
+    image: docker.io/bitnami/mariadb:10.3
+    ports:
+      - '3306:3306'
     environment:
       # ALLOW_EMPTY_PASSWORD is recommended only for development.
       - ALLOW_EMPTY_PASSWORD=yes
@@ -9,25 +11,21 @@ services:
       - MARIADB_DATABASE=bitnami_joomla
       - MARIADB_INITDB_SKIP_TZINFO=yes
     volumes:
-      - 'mariadb_data:/bitnami/mariadb'
+      - './data/mariadb_data:/bitnami/mariadb'
   joomla:
     build: docker/joomla
     ports:
-      - '17880:8080'
-      - '17843:8443'
+      - '8080:8080'
+      - '8443:8443'
     environment:
       - JOOMLA_DATABASE_HOST=mariadb
       - JOOMLA_DATABASE_PORT_NUMBER=3306
       - JOOMLA_DATABASE_USER=bn_joomla
       - JOOMLA_DATABASE_NAME=bitnami_joomla
-      - JOOMLA_USERNAME=admin
-      - JOOMLA_PASSWORD=sportsmanager
       # ALLOW_EMPTY_PASSWORD is recommended only for development.
       - ALLOW_EMPTY_PASSWORD=yes
     volumes:
-      - 'joomla_data:/bitnami/joomla'
-volumes:
-  mariadb_data:
-    driver: local
-  joomla_data:
-    driver: local
+      - './data/joomla_data:/bitnami/joomla'
+      - './docker/php.ini:/opt/bitnami/php/etc/php.ini:ro'
+    depends_on:
+      - mariadb