How can I set the background for Cinnamon?

How can I set the desktop background on a Cinnamon desktop?

From all the posts I’ve read, this should work

    dconf.enable = true;

    dconf.settings = {
      "org/gnome/desktop/background" = {
        color-shading-type = "solid";
        picture-options = "zoom";
        picture-uri = "/home/cafe/win-13.jpg";
      };
    };



If not that, this atleast should work

    home.file.".background-image".source = config.lib.file.mkOutOfStoreSymlink /home/cafe/win-13.jpg;

, but I find that none of this works.