nixcfg/homeManagerModules/guiApps/tauon/default.nix

{
  pkgs,
  lib,
  config,
  ...
}: {
  options = {guiApps.tauon.enable = lib.mkEnableOption "Enables Tauon.";};

  config = lib.mkIf config.guiApps.tauon.enable {
    home.packages = with pkgs; [tauon];
  };
}