{
  systemConfig,
  config,
  pkgs,
  lib,
  ...
}:

{

  home.persistence."/nix/persist/home/${config.home.username}".directories = [
    "thunderbird/.thunderbird/"
    "thunderbird/.cache/thunderbird"
  ];

  home.packages = [ pkgs.thunderbird ];

  systemd.user.services.thunderbird = {
    Unit.After = [ "graphical-session-pre.target" ];
    Unit.PartOf = [ "graphical-session.target" ];

    Service = {
      Environment =
        "PATH="
        + (lib.makeBinPath [
          "/run/wrappers"
          (
            if !systemConfig.nix.settings.use-xdg-base-directories then
              "/home/${config.home.username}/.nix-profile"
            else
              "/home/${config.home.username}/.local/state/nix/profile"
          )
          "/nix/var/nix/profiles/default"
          "/run/current-system/sw"
        ]);
      ExecStart = lib.getExe pkgs.thunderbird;
      Restart = "always";
      RestartSec = 5;
    };

    Install.WantedBy = [ "graphical-session.target" ];
  };

  xdg = {
    enable = true;
    mime.enable = true;

    #force hm to override existing mimeapps.list file
    configFile."mimeapps.list".force = true;

    mimeApps.enable = true;
    mimeApps.defaultApplications = {
      "x-scheme-handler/mailto" = "thunderbird.desktop";
    };
  };

}