{ pkgs, ... }: {
  home.packages = with pkgs; [ xfce.tumbler ];

  xdg.desktopEntries.llpp = {
    name = "llpp";
    genericName = "PDF viewer";
    exec = "llpp %f";
    terminal = false;
    categories = [ "Graphics" "Viewer" ];
    mimeType = [ "application/pdf" "application/x-pdf" ];
    type = "Application";
  };
  xdg.mimeApps.enable = true;
  xdg.mimeApps.defaultApplications = {
    "application/pdf" = [ "epdfview.desktop" ];
    "image/jpeg" = [ "org.xfce.ristretto.desktop" ];
    "image/png" = [ "org.xfce.ristretto.desktop" ];
    "text/plain" = [ "leafpad.desktop" ];
  };
}