diff --git a/scripts/backup b/scripts/backup
index 09f8c44..6229a5b 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -73,4 +73,4 @@ ynh_psql_dump_db --database="$db_name" > db.sql
 # END OF SCRIPT
 #=================================================
 
-ynh_print_info --message="Backup script completed for Moodle. (YunoHost will then actually copy those files to the archive)."
+ynh_print_info --message="Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
diff --git a/scripts/install b/scripts/install
index 325ba44..1da150a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -36,8 +36,6 @@ ynh_script_progression --message="Validating installation parameters..." --weigh
 
 final_path=/var/www/$app
 test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
-data_path=/home/yunohost.app/$app
-test ! -e "$data_path" || ynh_die --message="This path already contains a folder"
 
 # Register (book) web path
 ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
@@ -50,7 +48,6 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
 ynh_app_setting_set --app=$app --key=admin --value=$admin
-ynh_app_setting_set --app=$app --key=data_path --value=$data_path
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -114,13 +111,18 @@ ynh_add_fpm_config --package="$extra_php_dependencies"
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
-# SPECIFIC SETUP
-#=================================================
-# SECURE FILES AND DIRECTORIES
+# CREATE DATA DIRECTORY
 #=================================================
+ynh_script_progression --message="Creating a data directory..." --weight=1
+
+data_path=/home/yunohost.app/$app
+ynh_app_setting_set --app=$app --key=data_path --value=$data_path
 
 mkdir -p $data_path
-chown -R $app:www-data $data_path
+
+chmod 750 "$data_path"
+chmod -R o-rwx "$data_path"
+chown -R $app:www-data "$data_path"
 
 #=================================================
 # SETUP APPLICATION
@@ -158,6 +160,8 @@ ynh_exec_as $app php$phpversion "$final_path/admin/cli/purge_caches.php"
 ynh_script_progression --message="Adding cron job..." --weight=2
 
 ynh_add_config --template="../conf/cron" --destination="/etc/cron.d/$app"
+chown root: "/etc/cron.d/$app"
+chmod 644 "/etc/cron.d/$app"
 
 #=================================================
 # SETUP SSOWAT
@@ -181,4 +185,4 @@ ynh_systemd_action --service_name=nginx --action=reload
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Installation of Moodle completed" --last
+ynh_script_progression --message="Installation of $app completed" --last
diff --git a/scripts/remove b/scripts/remove
index 81e2e53..2c7cc30 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -74,9 +74,6 @@ ynh_script_progression --message="Removing various files..." --weight=2
 # Remove a cron file
 ynh_secure_remove --file="/etc/cron.d/$app"
 
-# Remove a directory securely
-ynh_secure_remove --file="$data_path"
-
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
@@ -91,4 +88,4 @@ ynh_system_user_delete --username=$app
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Removal of Moodle completed" --last
+ynh_script_progression --message="Removal of $app completed" --last
diff --git a/scripts/restore b/scripts/restore
index bdb931e..9d1d15d 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -36,12 +36,10 @@ phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 #=================================================
 ynh_script_progression --message="Validating restoration parameters..." --weight=1
 
-ynh_webpath_available --domain="$domain" --path_url="$path_url" \
+ynh_webpath_available --domain=$domain --path_url=$path_url \
 	|| ynh_die --message="Path not available: ${domain}${path_url}"
-test ! -d "$final_path" \
+test ! -d $final_path \
 	|| ynh_die --message="There is already a directory: $final_path "
-test ! -d "$data_path" \
-	|| ynh_die --message="There is already a directory: $data_path "
 
 #=================================================
 # STANDARD RESTORATION STEPS
@@ -63,17 +61,27 @@ ynh_system_user_create --username=$app --home_dir="$final_path"
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
-ynh_script_progression --message="Restoring Moodle main directory..." --weight=1
+ynh_script_progression --message="Restoring the app main directory..." --weight=1
 
-ynh_restore_file --origin_path=$final_path
-
-ynh_restore_file --origin_path=$data_path --not_mandatory
+ynh_restore_file --origin_path="$final_path"
 
 # Restore permissions on app files
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
-chown -R $app:www-data $data_path
+
+#=================================================
+# RESTORE THE DATA DIRECTORY
+#=================================================
+ynh_script_progression --message="Restoring the data directory..." --weight=1
+
+ynh_restore_file --origin_path="$data_path" --not_mandatory
+
+mkdir -p $data_path
+
+chmod 750 "$data_path"
+chmod -R o-rwx "$data_path"
+chown -R $app:www-data "$data_path"
 
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
@@ -127,4 +135,4 @@ ynh_systemd_action --service_name=nginx --action=reload
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Restoration completed for Moodle" --last
+ynh_script_progression --message="Restoration completed for $app" --last
diff --git a/scripts/upgrade b/scripts/upgrade
index a47efdc..8526cc8 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -163,6 +163,8 @@ ynh_exec_as $app php${phpversion} "$final_path/admin/cli/purge_caches.php"
 ynh_script_progression --message="Adding cron job..." --weight=4
 
 ynh_add_config --template="../conf/cron" --destination="/etc/cron.d/$app"
+chown root: "/etc/cron.d/$app"
+chmod 644 "/etc/cron.d/$app"
 
 chown -R $app:www-data "$final_path"
 
@@ -177,4 +179,4 @@ ynh_systemd_action --service_name=nginx --action=reload
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Upgrade of Moodle completed" --last
+ynh_script_progression --message="Upgrade of $app completed" --last