nixos/system/services.nix

{ config, pkgs, ... }: {

  security.rtkit.enable = true;
  networking.firewall.enable = false;
  security.polkit.enable = true;
  services = {
    prometheus = {
      scrapeConfigs = [
        {
          job_name = "chrysalis";
          static_configs = [{
            targets = [ "127.0.0.1:${toString config.services.prometheus.exporters.node.port}" ];
          }];
        }
      ];

      exporters = {
        node = {
          enable = true;
          enabledCollectors = [ "systemd" "processes" ];
          port = 9002;
        };
      };

      enable = true;
      port = 9001;
    };

    grafana = {
      enable = true;
      settings = {
        server = {
          # Listening Address
          http_addr = "127.0.0.1";
          # and Port
          http_port = 3000;
          # Grafana needs to know on which domain and URL it's running
          serve_from_sub_path = true;
        };
      };
    };
    displayManager =
      {
        defaultSession = "none+i3";
        autoLogin.enable = true;
        autoLogin.user = "mbeno";

      };
    logind.extraConfig = "IdleAction=ignore";
    xserver = {
      enable = true;
      xkb.layout = "us,no";
      xkb.variant = "qwerty";
      xkb.options = "grp:win_space_toggle";
      desktopManager = {
        xterm.enable = false;
      };
      videoDrivers = [ "nvidia" ];
      deviceSection = ''
        Option "TearFree" "False"
        Option "VariableRefresh" "true"
      '';
      xrandrHeads = [
        {
          output = "DP-2";
          primary = true;
          monitorConfig = "
          Option \"TargetRefresh\" \"144\"
          Option \"Primary\" \"true\"
          Option \"PreferredMode\" \"2560x1440\"
          Option \"DPMS\" \"true\"
          ";
        }
        {
          output = "DP-0";
          primary = false;
          monitorConfig = "
          Option \"TargetRefresh\" \"144\"
          Option \"Primary\" \"false\"
          Option \"PreferredMode\" \"1920x1080\"
          ";
        }
      ];
      screenSection =
        ''
          Option         "metamodes" "DP-2: 2560x1440_144 +0+0, DP-0: 1920x1080_144 +2560+0"
        '';
      windowManager.i3 = {
        enable = true;
        extraPackages = with pkgs; [
          dmenu #application launcher most people use
          i3status # gives you the default i3 status bar
          #          i3lock #default i3 screen locker
          i3blocks #if you are planning on using i3blocks over i3status
          polybar
          rofi
          nitrogen
        ];
      };
    };
  };
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };
  services.pcscd.enable = true;
  services.dbus.packages = [ pkgs.gcr ];
  services.openssh = {
    enable = true;
    settings.PasswordAuthentication = true;
  };
  networking.firewall.allowedTCPPorts = [ 22 ];
}