It sets wallpaper from bing wallpaper. Currently works for mac, have to extend it to linux. Step 1: Clone repo. Step 0: Create folder ~/Pictures/BingWallpapers/. Currently path is hardcoded. Step 2: python bing_wallpaper.py References: https://apple.stackexchange.com/questions/57412/how-can-i-trigger-a-notification-center-notification-from-an-applescript-or-shel