diff --git a/examples/hedgedoc.exemple.fr/.env b/examples/hedgedoc.exemple.fr/.env
index dd63a1d..9383189 100644
--- a/examples/hedgedoc.exemple.fr/.env
+++ b/examples/hedgedoc.exemple.fr/.env
@@ -1,8 +1,10 @@
 ########
 # DOCKER
 
+#DOCKER_CONTEXT=
 #DOCKER_HOST=
-COMPOSE_FILE=../../hedgedoc/docker-compose.yml:../../hedgedoc/docker-compose.traefik.yml:../../postgres/docker-compose.yml
+SERVICES_DIR=../..
+COMPOSE_FILE=${SERVICES_DIR}/hedgedoc/docker-compose.yml:${SERVICES_DIR}/hedgedoc/docker-compose.traefik.yml:${SERVICES_DIR}/postgres/docker-compose.yml
 COMPOSE_PROJECT_NAME=hedgedoc_exemple_fr
 
 ##########
@@ -12,11 +14,17 @@ HEDGEDOC_DOMAIN=hedgedoc.exemple.fr
 HEDGEDOC_VOLUME_NAME=hedgedoc_exemple_fr_hedgedoc
 HEDGEDOC_CONTAINER_NAME=hedgedoc_exemple_fr_hedgedoc
 #HEDGEDOC_IMAGE=
+
+# https://docs.hedgedoc.org/configuration/
 #NODE_ENV=
 #CMD_PROTOCOL_USESSL=
 #CMD_ALLOW_GRAVATAR=
 #CMD_ALLOW_FREEURL=
 #CMD_ALLOW_EMAIL_REGISTER=
+CMD_SESSION_SECRET=/ADm6sOuQ/EOhUA+xcmkQOtk9QDhggjsFBKQCLKrC6U=
+#CMD_DEFAULT_PERMISSION=
+#PGID=
+#PUID=
 
 ##########
 # POSTGRES
diff --git a/hedgedoc/.env b/hedgedoc/.env
index 91306dd..63786ca 100644
--- a/hedgedoc/.env
+++ b/hedgedoc/.env
@@ -14,11 +14,17 @@ HEDGEDOC_DOMAIN=md.cool.life
 #HEDGEDOC_VOLUME_NAME=
 #HEDGEDOC_CONTAINER_NAME=
 #HEDGEDOC_IMAGE=
+
+# https://docs.hedgedoc.org/configuration/
 #NODE_ENV=
 #CMD_PROTOCOL_USESSL=
 #CMD_ALLOW_GRAVATAR=
 #CMD_ALLOW_FREEURL=
 #CMD_ALLOW_EMAIL_REGISTER=
+#CMD_SESSION_SECRET=
+#CMD_DEFAULT_PERMISSION=
+#PGID=
+#PUID=
 
 ##########
 # POSTGRES
diff --git a/hedgedoc/docker-compose.yml b/hedgedoc/docker-compose.yml
index 920ae2b..faecba5 100644
--- a/hedgedoc/docker-compose.yml
+++ b/hedgedoc/docker-compose.yml
@@ -19,8 +19,12 @@ services:
       # https://docs.hedgedoc.org/configuration/
       CMD_DB_URL: postgres://${POSTGRES_USER:?err}:${POSTGRES_PASSWORD:?err}@${POSTGRES_CONTAINER_NAME}:${POSTGRES_PORT:-5432}/${POSTGRES_DB:?err}
       CMD_DOMAIN: ${HEDGEDOC_DOMAIN:?err}
+      CMD_SESSION_SECRET: ${CMD_SESSION_SECRET:?err}
       NODE_ENV: ${NODE_ENV:-development} # `production` or `development`
       CMD_PROTOCOL_USESSL: ${CMD_PROTOCOL_USESSL:-false}
       CMD_ALLOW_GRAVATAR: ${CMD_ALLOW_GRAVATAR:-true}
       CMD_ALLOW_FREEURL: ${CMD_ALLOW_FREEURL:-false}
       CMD_ALLOW_EMAIL_REGISTER: ${CMD_ALLOW_EMAIL_REGISTER:-true}
+      CMD_DEFAULT_PERMISSION: ${CMD_DEFAULT_PERMISSION:-editable}
+      PGID: ${PGID:-1000}
+      PUID: ${PUID:-1000}