diff --git a/.env b/.env
index d1d7826..3d95931 100644
--- a/.env
+++ b/.env
@@ -21,13 +21,6 @@ INFLUXDB_PORT=8086
 INFLUXDB_PASSWORD=2RPJpkrduLgkpfQCpcBe1jYv
 INFLUXDB_ADMIN_TOKEN=egLfcf7fx0FESqFYU3RpAAbj
 
-########################################################################
-# PHP
-########################################################################
-PHP_XDEBUG_MODE=off
-PHP_XDEBUG_CLIENT_PORT=5902
-PHP_XDEBUG_CLIENT_HOST=host.docker.internal
-
 ########################################################################
 # PHPMyAdmin
 ########################################################################
diff --git a/README.md b/README.md
index 3b909cb..689ed90 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,9 @@ Ports and Passwords are configured in `.env`.
 
 ## Using for DEMO purpose
 ### Info
-* Demo starts in production environment.
-* Uses prepared fixture data for databases (Changes will not be preserved).
-* ClusterCockpit is initialized from scratch on every container start (Changes will not be preserved).
+* The demo starts in Symfony production environment.
+* It uses prepared fixture data for databases (Changes will not be preserved).
+* ClusterCockpit is checked out and initialized from scratch on every container start (Changes will not be preserved).
 
 ### Setup
 The fixture data needs to be prepared once before first start of containers:
@@ -44,8 +44,8 @@ To reuse an existing Symfony tree at `./data/symfony` you may change the environ
 
 ## Using for DEVELOP purpose
 ### Info
-* `APP_ENVIRONMENT` variable in `.env` used to switch `php-fpm` container to development environement.
-* `APP_CLUSTERCOCKPIT_INIT` variable in `.env` used to prevent container from initializing a new ClusterCockpit instance on every start.
+* The `APP_ENVIRONMENT` variable in `.env` is used to switch the `php-fpm` container to development environment.
+* The `APP_CLUSTERCOCKPIT_INIT` variable in `.env` is used to prevent the container from initializing a new ClusterCockpit instance on every start.
 * In this case, an existing Symfony tree at `./data/symfony` is required.
 * By default, this also uses prepared fixture data for databases. In order to use an existing database, changes in `.env` and `docker-compose.yml` are required (see below).
 
diff --git a/data/sql/ClusterCockpit.sql b/data/sql-init/ClusterCockpit.sql
similarity index 100%
rename from data/sql/ClusterCockpit.sql
rename to data/sql-init/ClusterCockpit.sql
diff --git a/docker-compose.yml b/docker-compose.yml
index 1430c0c..d8f39b5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,7 +9,7 @@ services:
             MYSQL_USER: symfony
             MYSQL_PASSWORD: ${MYSQL_PASSWORD}
         volumes:
-            - ${DATADIR}/sql:/docker-entrypoint-initdb.d
+            - ${DATADIR}/sql-init:/docker-entrypoint-initdb.d
         cap_add:
             - SYS_NICE
 
@@ -22,9 +22,6 @@ services:
         build:
             context: ./php-fpm
             args:
-                PHP_XDEBUG_MODE: ${PHP_XDEBUG_MODE}
-                PHP_XDEBUG_CLIENT_PORT: ${PHP_XDEBUG_CLIENT_PORT}
-                PHP_XDEBUG_CLIENT_HOST: ${PHP_XDEBUG_CLIENT_HOST}
                 SYMFONY_CLI_VERSION: 4.23.2
                 MYSQL_PASSWORD: ${MYSQL_PASSWORD}
                 INFLUXDB_PASSWORD: ${INFLUXDB_PASSWORD}
diff --git a/php-fpm/Dockerfile b/php-fpm/Dockerfile
index ad51db7..dd63425 100644
--- a/php-fpm/Dockerfile
+++ b/php-fpm/Dockerfile
@@ -37,20 +37,6 @@ RUN apk add --no-cache \
     git \
     curl
 
-# Enable php8-xdebug if $PHP_XDEBUG_MODE is not empty
-ARG PHP_XDEBUG_MODE=off
-ARG PHP_XDEBUG_CLIENT_PORT=5902
-ARG PHP_XDEBUG_CLIENT_HOST=host.docker.internal
-COPY xdebug.ini  /etc/php8/conf.d/xdebug.ini.template
-RUN if [[ "$PHP_XDEBUG_MODE" != "" ]]; then \
-        apk add --no-cache php8-pecl-xdebug; \
-        export PHP_XDEBUG_MODE=$PHP_XDEBUG_MODE; \
-        export PHP_XDEBUG_CLIENT_PORT=$PHP_XDEBUG_CLIENT_PORT; \
-        export PHP_XDEBUG_CLIENT_HOST=$PHP_XDEBUG_CLIENT_HOST; \
-        envsubst < /etc/php8/conf.d/xdebug.ini.template > /etc/php8/conf.d/xdebug.ini; \
-    fi
-RUN rm -f /etc/php8/conf.d/xdebug.ini.template
-
 RUN curl -sS https://getcomposer.org/installer | tee composer-setup.php \
     && php8 composer-setup.php && rm composer-setup.php* \
     && chmod +x composer.phar && mv composer.phar /usr/bin/composer \