diff --git a/README.md b/README.md
index bb148c0..54b4bf6 100644
--- a/README.md
+++ b/README.md
@@ -35,8 +35,8 @@ The app can be used by multiple users, anonymously.
 
 #### Supported architectures
 
-* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/distbin%20%28Apps%29.svg)](https://ci-apps.yunohost.org/ci/apps/distbin/)
-* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/distbin%20%28Apps%29.svg)](https://ci-apps-arm.yunohost.org/ci/apps/distbin/)
+* x86-64 - [![Build Status](https://ci-apps.yunohost.org/ci/logs/distbin.svg)](https://ci-apps.yunohost.org/ci/apps/distbin/)
+* ARMv8-A - [![Build Status](https://ci-apps-arm.yunohost.org/ci/logs/distbin.svg)](https://ci-apps-arm.yunohost.org/ci/apps/distbin/)
 
 ## Limitations
 
diff --git a/check_process b/check_process
index f2ab4ae..0fefea2 100644
--- a/check_process
+++ b/check_process
@@ -24,6 +24,8 @@
 		upgrade=1	from_commit=f7bc083d037eb771afeddc2237a24505a5ef1c68
 		# 1.3.0~ynh6
 		upgrade=1	from_commit=cdec64125b179f6b19470ceb8379225ed03c10a8
+		# 1.3.0~ynh7
+		upgrade=1	from_commit=481c0c5ce62caa9c79a6bd536f390f3814128b3a
 		backup_restore=1
 		multi_instance=1
 		port_already_use=0
@@ -40,3 +42,5 @@ Notification=all
 		name=1.3.0~ynh5
 	; commit=cdec64125b179f6b19470ceb8379225ed03c10a8
 		name=1.3.0~ynh6
+	; commit=481c0c5ce62caa9c79a6bd536f390f3814128b3a
+		name=1.3.0~ynh7
diff --git a/manifest.json b/manifest.json
index b3f59d0..cbe0799 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Distributed pastebin with ActivityPub.",
         "fr": "Pastebin distribué utilisant le protocole ActivityPub."
     },
-    "version": "1.3.0~ynh7",
+    "version": "1.3.0~ynh8",
     "url": "https://distbin.com/",
     "license": "Apache-2.0",
     "maintainer": {
diff --git a/scripts/change_url b/scripts/change_url
index b934598..ad048fb 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -31,7 +31,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 port=$(ynh_app_setting_get --app=$app --key=port)
 
 #=================================================
-# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+# BACKUP BEFORE CHANGE URL THEN ACTIVE TRAP
 #=================================================
 ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..."
 
diff --git a/scripts/install b/scripts/install
index 1005197..937f27a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -67,6 +67,14 @@ ynh_script_progression --message="Installing dependencies..."
 ynh_install_app_dependencies $pkg_dependencies
 ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..."
+
+# Create a system user
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -76,6 +84,10 @@ ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$final_path"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:$app "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -84,14 +96,6 @@ ynh_script_progression --message="Configuring NGINX web server..."
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Configuring system user..."
-
-# Create a system user
-ynh_system_user_create --username=$app --home_dir="$final_path"
-
 #=================================================
 # SPECIFIC SETUP
 #=================================================
@@ -111,24 +115,36 @@ mkdir -p "$final_path/distbin-db"
 mkdir -p "$final_path/distbin-db/activities"
 mkdir -p "$final_path/distbin-db/inbox"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:$app "$final_path"
+
 #=================================================
 # INSTALLING DISTBIN
 #=================================================
 ynh_script_progression --message="Installing Distbin..."
 
-chown -R "$app":"$app" "$final_path"
-
 pushd $final_path
 	ynh_use_nodejs
 	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts
 	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm run build
-	cp package* dist/ 
+	sudo -u $app cp -af package* dist/ 
 popd
 
 pushd $final_path/dist
 	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts --production
 popd
 
+#=================================================
+# ADD A CONFIGURATION
+#=================================================
+ynh_script_progression --message="Adding a config file..."
+
+ynh_add_config --template="../conf/.env" --destination="$final_path/.env"
+
+chmod 400 "$final_path/.env"
+chown $app:$app "$final_path/.env"
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================
@@ -137,23 +153,8 @@ ynh_script_progression --message="Configuring a systemd service..."
 # Create a dedicated systemd config
 ynh_add_systemd_config
 
-#=================================================
-# MODIFY A CONFIG FILE
-#=================================================
-ynh_script_progression --message="Modifying a config file..."
-
-ynh_add_config --template="../conf/.env" --destination="$final_path/.env"
-
 #=================================================
 # GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-ynh_script_progression --message="Securing files and directories..."
-
-# Set permissions to app files
-chown -R $app:$app $final_path
-
 #=================================================
 # SETUP LOGROTATE
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 78afd1b..df37250 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -23,7 +23,7 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
-ynh_script_progression --message="Loading settings..."
+ynh_script_progression --message="Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -50,6 +50,14 @@ ynh_script_progression --message="Restoring the NGINX web server configuration..
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Recreating the dedicated system user..."
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -57,21 +65,9 @@ ynh_script_progression --message="Restoring the app main directory..."
 
 ynh_restore_file --origin_path="$final_path"
 
-#=================================================
-# RECREATE THE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Recreating the dedicated system user..."
-
-# Create the dedicated user (if not existing)
-ynh_system_user_create --username=$app --home_dir=$final_path
-
-#=================================================
-# RESTORE USER RIGHTS
-#=================================================
-ynh_script_progression --message="Restoring user rights..."
-
-# Restore permissions on app files
-chown -R $app:$app $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:$app "$final_path"
 
 #=================================================
 # CREATE LOG FOLDER
@@ -127,7 +123,7 @@ ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
-# RELOAD NGINX AND PHP-FPM
+# RELOAD NGINX
 #=================================================
 ynh_script_progression --message="Reloading NGINX web server..."
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 6f1a9c4..dbb4f0e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -49,7 +49,7 @@ ynh_script_progression --message="Backing up the app before upgrading (may take
 ynh_backup_before_upgrade
 ynh_clean_setup () {
 	ynh_clean_check_starting
-	# restore it if the upgrade fails
+	# Restore it if the upgrade fails
 	ynh_restore_upgradebackup
 }
 # Exit if an error occurs during the execution of the script
@@ -64,6 +64,14 @@ ynh_script_progression --message="Stopping a systemd service..."
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path=systemd --line_match="Stopped Distbin Service"
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Making sure dedicated system user exists..."
+
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -76,6 +84,10 @@ then
 	ynh_setup_source --dest_dir="$final_path"
 fi
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:$app "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -92,14 +104,6 @@ ynh_script_progression --message="Upgrading dependencies..."
 ynh_install_app_dependencies $pkg_dependencies
 ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Making sure dedicated system user exists..."
-
-# Create a dedicated user (if not existing)
-ynh_system_user_create --username=$app --home_dir=$final_path
-
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
@@ -121,24 +125,36 @@ if [ -d "$DIRECTORY" ]; then
 	mv "$final_path/db" "$final_path/distbin-db"
 fi
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:$app "$final_path"
+
 #=================================================
 # MAKE UPGRADE
 #=================================================
 ynh_script_progression --message="Making upgrade..."
 
-chown -R "$app":"$app" "$final_path"
-
 pushd $final_path
 	ynh_use_nodejs
 	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts
 	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm run build
-	cp package* dist/ 
+	sudo -u $app cp -af package* dist/ 
 popd
 
 pushd $final_path/dist
 	ynh_exec_warn_less sudo -u $app $ynh_node_load_PATH $ynh_npm install --ignore-scripts  --production
 popd
 
+#=================================================
+# UPDATE A CONFIG FILE
+#=================================================
+ynh_script_progression --message="Updating a config file..."
+
+ynh_add_config --template="../conf/.env" --destination="$final_path/.env"
+
+chmod 400 "$final_path/.env"
+chown $app:$app "$final_path/.env"
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================
@@ -147,23 +163,8 @@ ynh_script_progression --message="Upgrading systemd configuration..."
 # Create a dedicated systemd config
 ynh_add_systemd_config
 
-#=================================================
-# UPDATE A CONFIG FILE
-#=================================================
-ynh_script_progression --message="Updating a config file..."
-
-ynh_add_config --template="../conf/.env" --destination="$final_path/.env"
-
 #=================================================
 # GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-ynh_script_progression --message="Securing files and directories..."
-
-# Set permissions on app files
-chown -R $app:$app $final_path
-
 #=================================================
 # SETUP LOGROTATE
 #=================================================