Show HN: Random wiki image as wallpaper

I've used Wikipedia's Random articles as a source of randomness for some test scripts:

wwwrand() { nice curl --compressed --location --raw --verbose https://secure.wikimedia.org/wikipedia/en/wiki/Special:Rando... 2>&1 | shasum --algorithm 512 | base64 --wrap=0 | tr -cd "a-zA-Z0-9" | dd bs="$1" count=1 2>/dev/null ; echo ; }

  $ wwwrand 8
  ZjBkNjRm

Hashing the Google News home page is good, too. :)