diff --git a/app/js/aether_app_native_v4.js b/app/js/aether_app_native_v4.js
index acd0159..d06b373 100644
--- a/app/js/aether_app_native_v4.js
+++ b/app/js/aether_app_native_v4.js
@@ -889,6 +889,8 @@ exports.run_cmd = async function ({cmd=null}) {
 exports.get_device_info = async function () {
     console.log('*** Electron framework export: get_device_info() ***');
 
+    // https://nodejs.org/api/os.html
+
     let data = {};
     data['arch'] = os.arch();
     data['hostname'] = os.hostname();