Hello! As mentioned in the video and the plugin post, this plugin will not work with HTML5 or mobile devices since it uses the Windows file system. Due to security reasons and the way NW.js works, it doesn’t allow file reading and writing in this manner. To make it work, a specific plugin would be needed, which unfortunately isn't my area of expertise.
I suppose you could use it with the Game Version Checker system, but please be aware that there may be limitations and security restrictions due to how NW.js operates.
Best regards!