nixos-config/config/programs/mako.nix

{pkgs, ...}: {
  programs.mako = {
    enable = true;
    defaultTimeout = 30000;
  };
  systemd.user.services.mako = {
    Unit = {
      Description = "mako";
      After = [ "graphical-session-pre.target" ];
      PartOf = [ "graphical-session.target" ];
    };
    Install.WantedBy = ["graphical-session.target"];
    Service = {
      ExecStart = "mako";
    };
  };
}