diff --git a/.env b/.env
index a00b34c9376dad735668fd76751ef1992584f5d2..f6e8349ced7fa738225130c6013c2d1cbc4068e0 100644
--- a/.env
+++ b/.env
@@ -9,4 +9,4 @@ GROUP_ID=1000  # Group ID used in the Docker containers
 
 NODE_TAG=10
 COMPOSER_VERSION=2.6.5
-FPMHOST="fpm:9000"
\ No newline at end of file
+FPM_HOST="fpm:9000"
\ No newline at end of file
diff --git a/build/nginx/Dockerfile b/build/nginx/Dockerfile
index dd24c4c58e02abbc65bc1d90da3ed2ebec1879c2..85cd90c045d24afd89254fc536f4c4e553d9ee4a 100644
--- a/build/nginx/Dockerfile
+++ b/build/nginx/Dockerfile
@@ -2,7 +2,7 @@ FROM nginx:1.25.3 as development
 
 ARG USER_ID=1000
 ARG GROUP_ID=1000
-ARG FPMHOST="fpm:9000"
+ARG FPM_HOST="fpm:9000"
 
 RUN deluser nginx
 RUN addgroup --gid $GROUP_ID mgmaps && useradd -d /home/mgmaps -u $USER_ID -g $GROUP_ID -m -s /bin/bash mgmaps
@@ -12,7 +12,7 @@ RUN cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime
 ADD ./build/nginx/config/nginx.conf /etc/nginx/nginx.conf
 RUN rm /etc/nginx/conf.d/default.conf
 ADD ./build/nginx/config/maps.conf /tmp/maps.conf
-RUN envsubst '$FPMHOST' < /tmp/maps.conf > /etc/nginx/conf.d/maps.conf
+RUN envsubst '$FPM_HOST' < /tmp/maps.conf > /etc/nginx/conf.d/maps.conf
 
 # Fix directories the root image is using
 RUN mkdir -p /var/cache/nginx/client_temp && \
diff --git a/docker-compose.yml b/docker-compose.yml
index 02ae1752425dac848a5557b56bcd736d11fbe47b..3e6306d01aba552123a1088d11d0441832cbc83f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,13 +10,13 @@ services:
       args:
         USER: ${USER_ID}
         GROUP: ${GROUP_ID}
-        FPMHOST: ${FPMHOST}
+        FPM_HOST: ${FPM_HOST}
     image: ${IMAGE_NAME}/nginx:${IMAGE_TAG}
     ports:
       - 8080:80
     working_dir: /html
-  #    volumes:
-  #      - ./app:/html
+    volumes:
+      - ./app:/html
   fpm:
     restart: unless-stopped
     build:
@@ -27,7 +27,7 @@ services:
         GROUP: ${GROUP_ID}
     image: ${IMAGE_NAME}/fpm:${IMAGE_TAG}
     volumes:
-      #      - ./app:/html
+      - ./app:/html
       - vendor:/html/vendor
       - bootstrap-cache:/html/bootstrap/cache
   assets: