diff --git a/manifest.json b/manifest.json
index 2d7a9d7..e159690 100644
--- a/manifest.json
+++ b/manifest.json
@@ -48,6 +48,15 @@
                 "type": "user",
                 "example": "homer"
             },
+            {
+                "name": "is_public",
+                "type": "boolean",
+                "help": {
+                    "en": "If enabled, Nextcloud will be accessible by Nextcloud Desktop and by users without a YunoHost account. This can be changed later in the webadmin.",
+                    "fr": "Si cette case est cochée, Nextcloud sera accessible par Nextcloud Desktop et par les utilisateurs n’ayant pas de compte YunoHost. Vous pourrez changer dans la webadmin."
+                },
+                "default": true
+            },
             {
                 "name": "user_home",
                 "type": "boolean",
diff --git a/scripts/install b/scripts/install
index 1ca2fc6..c36b120 100755
--- a/scripts/install
+++ b/scripts/install
@@ -24,6 +24,7 @@ domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 admin=$YNH_APP_ARG_ADMIN
 user_home=$YNH_APP_ARG_USER_HOME
+is_public=$YNH_APP_ARG_IS_PUBLIC
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -331,7 +332,13 @@ ynh_add_fail2ban_config --logpath="/home/yunohost.app/$app/data/nextcloud.log" -
 #=================================================
 # SETUP SSOWAT
 #=================================================
-ynh_script_progression --message="Configuring SSOwat..."
+ynh_script_progression --message="Configuring permissions..."
+
+# Make app public if necessary
+if [ $is_public -eq 1 ]
+then
+  ynh_permission_update --permission="main" --add="visitors"
+fi
 
 ynh_permission_create --permission="api" --label="api" --url="re:$domain\/.well-known\/.*" --allowed="visitors" "all_users" --auth_header="false" --show_tile="false" --protected="true"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 175c4ee..8968143 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -70,6 +70,13 @@ if [ -z "$phpversion" ]; then
     phpversion="$YNH_PHP_VERSION"
 fi
 
+# Cleaning legacy permissions
+if ynh_legacy_permissions_exists; then
+    ynh_legacy_permissions_delete_all
+
+    ynh_app_setting_delete --app=$app --key=is_public
+fi
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================