One of the ways users have to customize their computers is by changing the wallpaper. With the Plash program we can go a step further by using the standard desktop image again set up a website.
Calendar, favorite website or animated GIF as wallpaper
Description of Plash on his GitHub page says "make it possible to have a very powerful desktop wallpaper. We can show our favorite news site, Facebook timeline or random photo. The possibilities are endless. We can use animated GIF as wallpaper. "
An example is Unsplash's image bank and the use of children's pictures. Entering the following link (rubbing the number on our qrde screen) will get a different picture each time. And they give us another perspective and that will show Our Google Calendar or Outlook 365 Calendar
Plash is a very insightful app with its configuration options controlled by the menu bar at the top. Available Mac App Store for free, and to be able to use it you need a computer compatible with MacOS 10.15 Catalina.