You would need just a little app with html view that displays a little free widget, e.g.
https://widgets.tc2000.com/?from=fsc.
The dashboard of earlier Mac OSX allowed to create those from Safari snippets, for example.

https://piyush2909.wordpress.com/2013/08/25/top-10-free-stock-widgets-for-website-and-blog/

[ Edited by amifrog 31.10.2020 - 13:08 ]