self: super: {
  firefox-bin-unwrapped = super.firefox-bin-unwrapped.override { systemLocale = "en-GB"; };
  firefox-devedition-bin-unwrapped = super.firefox-devedition-bin-unwrapped.override {
    systemLocale = "en-GB";
  };
  rofi = super.rofi.overrideAttrs (oldAttrs: {
    postInstall = ''
      ln $out/bin/rofi $out/bin/dmenu
    '';
  });
}