self: super: {
  self.i3ipc-glib   = super.callPackage ./i3ipc-glib.nix {};
  self.i3lock-color = super.callPackage ./i3lock-color.nix {};
  self.pidgin-lurch = super.callPackage ./pidgin-lurch.nix {};
  self.wpgtk        = super.callPackage ./wpgtk.nix { gtk = super.gnome3.gtk; };
  self.xfce = super.xfce // {
    xfce4-i3-workspaces-plugin = super.callPackage ./xfce4-i3-workspaces-plugin.nix { gtk = super.gnome2.gtk; };
  };
}