downloads wallpapers from reddit (currently from r/WidescreenWallpapers and r/wallpaper) and sets them using gsetting on gnome.
If there aren't any new images to download, it randomly picks a wallpaper from an archive, where images from the target folder are moved to periodically.
first change screen width, height and download path, then compile the program with
nim c -d:release -d:ssl wallpaper_downloader.nim
Both the download path folder and the archive folder inside it should exist before running the program