{ lib, ... }:
let
  inherit (lib)
    singleton;

  pname = "courier-unicode";
  version = "2.2.6";
in
{
  flake.overlays.courier-unicode =
    final: prev:
    {
      courier-unicode =
        prev.stdenv.mkDerivation rec {
          inherit pname version;

          src = prev.fetchurl {
            url = "mirror://sourceforge/courier/courier-unicode/${version}/${pname}-${version}.tar.bz2";
            sha256 = "sha256-UT9oBm7RkqzmMPYBmExWW1wdHIHZjGR46+Tts6Fb4Do=";
          };

          nativeBuildInputs = singleton prev.perl;
        };
    };
}