{
  pkgs,
  inputs,
  ...
}:
let
  unstable = inputs.nixpkgs-unstable.legacyPackages.${pkgs.stdenv.hostPlatform.system};

  wivrn-overlay = _final: _prev: {
    inherit (unstable) wivrn;
  };
in
{
  imports = [
    ../shared/nixos-pc.nix
    ../../features/kde.nix
    ../../features/flatpak.nix
  ];

  nixpkgs.overlays = [
    wivrn-overlay
    inputs.millennium.overlays.default
    inputs.cheatengine.overlays.default
  ];

  boot = {
    kernelParams = [
      "vfio-pci.ids=10de:2782,10de:22bc"
      "video=DP=-3:1024x768@85"
    ];
  };

  networking.hostName = "nero";

  services = {
    flatpak = {
      packages = [
        {
          appId = "com.discordapp.Discord";
          origin = "flathub";
        }
        {
          appId = "com.github.Matoking.protontricks";
          origin = "flathub";
        }
        {
          appId = "com.steamgriddb.SGDBoop";
          origin = "flathub";
        }
        {
          appId = "com.vysp3r.ProtonPlus";
          origin = "flathub";
        }
        {
          appId = "io.mpv.Mpv";
          origin = "flathub";
        }
        {
          appId = "org.ghidra_sre.Ghidra";
          origin = "flathub";
        }
        {
          appId = "io.github.ryubing.Ryujinx";
          origin = "flathub";
        }
        {
          appId = "io.github.ungoogled_software.ungoogled_chromium";
          origin = "flathub";
        }
        {
          appId = "org.gtk.Gtk3theme.Breeze";
          origin = "flathub";
        }
        {
          appId = "io.github.Amethyst.ModManager";
          origin = "amethyst-mod-manager";
        }
      ];
    };

    wivrn = {
      enable = true;
      openFirewall = true;
      autoStart = true;
    };

    moonshine = {
      enable = true;
      user = "frank";
      uid = 1000;
      openFirewall = true;
      settings = {
        application = [
          {
            title = "Steam";
            command = [
              "/run/current-system/sw/bin/steam"
              "steam://open/bigpicture"
            ];
          }
        ];
        application_scanner = [
          {
            type = "steam";
            library = "$HOME/.local/share/Steam";
            command = [
              "/run/current-system/sw/bin/steam"
              "-bigpicture"
              "steam://rungameid/{game_id}"
            ];
          }
        ];
      };
    };
  };

  programs = {
    gamemode.enable = true;

    steam = {
      enable = true;
      package = pkgs.millennium-steam;
      remotePlay.openFirewall = true;
      extraPackages = [ pkgs.hidapi ];
    };
  };

  nix = {
    distributedBuilds = true;
    settings.builders-use-substitutes = true;

    buildMachines = [
      {
        hostName = "vergil.cfl.rr.com";
        sshUser = "remotebuild";
        sshKey = "/root/.ssh/id_rsa";
        system = pkgs.stdenv.hostPlatform.system;
        protocol = "ssh-ng";
        maxJobs = 24;
        speedFactor = 2;
        mandatoryFeatures = [ ];

        supportedFeatures = [
          "nixos-test"
          "benchmark"
          "big-parallel"
          "kvm"
        ];
      }
    ];
  };

  environment = {
    sessionVariables = {
      AVALONIA_SCREEN_SCALE_FACTORS = "HDMI-A-1=2.0;DP-1=2.0;DP-2=2.0;DP-3=2.0";
    };

    systemPackages = with pkgs; [
      qimgv
      zathura
      mangohud
      gamescope
      gamescope-wsi
      cheatengine
      qbittorrent

      inputs.scopebuddy.packages.${pkgs.stdenv.hostPlatform.system}.default

      (callPackage ../../packages/xivlauncher/package.nix { })
      (callPackage ../../packages/aseprite/package.nix { })
      (callPackage ../../packages/aseprite-thumbnailer-kde/package.nix { inherit unstable; })
      (callPackage ../../packages/undertale-mod-tool/package.nix { })
    ];
  };
}