{pkgs, ...}: {
  users = {
    groups.sils = {
      gid = 1111;
    };
    mutableUsers = false;
    users.sils = {
      isNormalUser = true;
      uid = 1000;
      group = "sils";
      home = "/home/sils";
      shell = pkgs.zsh;
      initialHashedPassword = "$y$j9T$r4578Hy9jZHmUH9uSr9OI.$SuR2anRq7EJ1gUJ6vi9qYmZrhLP.o3O5643IG6r5Ap/";
      extraGroups = [
        "wheel"
        "networkmanager"
        "video"
        "libvirtd"
        "realtime"
      ];
    };
  };
  services.udev.extraRules = ''
    KERNEL=="cpu_dma_latency", GROUP="realtime"
  '';
  security.pam.loginLimits = [
    {
      domain = "@realtime";
      type = "-";
      item = "rtprio";
      value = 98;
    }
    {
      domain = "@realtime";
      type = "-";
      item = "memlock";
      value = "unlimited";
    }
    {
      domain = "@realtime";
      type = "-";
      item = "nice";
      value = -11;
    }
  ];
  programs.zsh.enable = true;
}