diff --git a/check_process b/check_process
index 8fcde4f..65b4d92 100644
--- a/check_process
+++ b/check_process
@@ -1,9 +1,9 @@
 ;; Test complet
 	auto_remove=1
 	; Manifest
-		domain="domain.tld"	(DOMAIN)
-		path="/path"	    (PATH)
-		is_public=1	        (PUBLIC|public=1|private=0)
+		domain="domain.tld"
+		path="/path"
+		is_public=1
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
diff --git a/manifest.json b/manifest.json
index de6cf9f..ee85eff 100644
--- a/manifest.json
+++ b/manifest.json
@@ -13,7 +13,7 @@
         "name": "chtixof"
     },
      "requirements": {
-        "yunohost": ">> 4.1.7"
+        "yunohost": ">> 4.2.4"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/install b/scripts/install
index 4dfd6e4..fb06815 100644
--- a/scripts/install
+++ b/scripts/install
@@ -48,6 +48,14 @@ 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
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..." --weight=1
+
+# Create a system user
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -57,6 +65,10 @@ 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 $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -65,14 +77,6 @@ ynh_script_progression --message="Configuring NGINX web server..." --weight=1
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Configuring system user..." --weight=1
-
-# Create a system user
-ynh_system_user_create --username=$app
-
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
@@ -81,15 +85,6 @@ ynh_script_progression --message="Configuring PHP-FPM..." --weight=1
 ynh_add_fpm_config
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions to app files
-chown -R $app: $final_path
-
 #=================================================
 # SETUP SSOWAT
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index ac13aae..97a1d90 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -46,6 +46,14 @@ test ! -d $final_path \
 
 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..." --weight=1
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -53,20 +61,9 @@ ynh_script_progression --message="Restoring Minchat main directory..." --weight=
 
 ynh_restore_file --origin_path="$final_path"
 
-#=================================================
-# RECREATE THE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
-
-# Create the dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
-#=================================================
-# RESTORE USER RIGHTS
-#=================================================
-
-# Restore permissions on app files
-chown -R $app: $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 35285bd..50a512e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -58,6 +58,14 @@ ynh_clean_setup () {
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
+
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -70,6 +78,10 @@ then
 	ynh_setup_source --dest_dir="$final_path"
 fi
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -78,21 +90,6 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
-
-# Create a dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions to app files
-chown -R $app: $final_path
-
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================