$ picsum-wall --help

  Bringing the joys of picsum to your desktop

  Usage
  	$ picsum-wall [...]

  Options
  	--width      Image width (default: 1920)
  	--height     Image height (default: 1080)
  	--grayscale  Get a grayscaled image
  	--blur       Get a blurred image
  	--id         Get a specific image from picsom.photos

  Examples
  	$ picsum-wall
  	$ picsum-wall --width=900
  	$ picsum-wall --blur --grayscale
  	$ picsum-wall --id 237