{
  perSystem =
    { pkgs, ... }:
    {
      packages.pinentry-rofi =
        (pkgs.writeShellApplication {
          name = "pinentry-rofi";
          runtimeInputs = with pkgs; [
            rofi
            coreutils
            gnused
            keyutils
          ];
          text = builtins.readFile ./pinentry-rofi.sh;
        }).overrideAttrs
          { passthru.usage = builtins.readFile ./usage.kdl; };
    };
}