Adding a URL on Mac OSX Login Screen

We are trying to customize the Login Screen for Mac machine to have a button to opens a secure browser with a pre-defined URL. The below is the sample login screen.
We used below links:
https://developer.apple.com/documentation/securityinterface/sfauthorizationpluginview

https://stackoverflow.com/questions/21056322/customize-login-screen-mac-osx-sfauthorizationpluginview?rq=1

https://stackoverflow.com/questions/21582995/custom-login-lock-screen-in-os-x-mavericks/21618085

https://www.antoinebellanger.ch/blog-post/sfauthorizationpluginview-introduction

However, We could not add a button or a link on the custom login screen.

Is there is a good tutorial or article for doing this? Please share your responses.