{lib, pkgs, config, ...}: {
  home.packages = [
    pkgs.gcr
  ] ++ 
    (if config.services.gpg-agent.pinentryFlavor == "gtk2" then [pkgs.pinentry-gtk2]
    else if config.services.gpg-agent.pinentryFlavor == "gnome3" then [pkgs.pinentry-gnome]
    else [])
  ;

  programs.gpg.enable = true;
  services.gpg-agent = {
    enable = true;
    enableScDaemon = true;
    enableSshSupport = true;
    grabKeyboardAndMouse = true;
    pinentryFlavor = lib.mkDefault "gtk2";
    extraConfig = "";

    defaultCacheTtl = 0;
    maxCacheTtl = 0;
  };
}