{
  nixos-hardware,
  nix-ld-rs,
  attic,
  ...
}:
{ pkgs, config, ... }:
{
  imports = [
    nixos-hardware.nixosModules.common-cpu-amd
    nixos-hardware.nixosModules.common-cpu-amd-pstate
    nixos-hardware.nixosModules.common-gpu-amd
    nixos-hardware.nixosModules.common-pc-ssd

    # microvm.nixosModules.host

    # ./vm.nix

    ../../users/erwin
    ../../users/root
    ../../users/builder
  ];

  eboskma = {
    users = {
      erwin = {
        enable = true;
        home = true;
      };
      builder.enable = true;
    };
    base = {
      plymouth.enable = true;
      work = false;
      udev-rules = {
        qmk = true;
        solo2 = true;
        picotool = true;
        blink1 = true;
        probe-rs = true;
      };
    };
    bluetooth.enable = true;
    desktop = {
      enable = true;
      wayland = true;
    };
    element-web.enable = false;
    fonts.enable = true;
    gnome.enable = true;
    greetd = {
      enable = false;
      sway = true;
      river = true;
      wallpaper = ../../wallpapers/river-2560.png;
    };
    guix.enable = true;
    networking = {
      enable = true;
    };
    nix-common = {
      enable = true;
      cross-systems = [ "aarch64-linux" ];
      gc-interval = "weekly";
    };
    podman.enable = true;
    regreet = {
      enable = true;
      wallpaper = ../../wallpapers/river-2560.png;
      wayvnc = true;
    };
    tailscale.enable = true;
    sound = {
      enable = true;
      jack = true;
    };
    systemd.enable = true;
  };

  fileSystems = {
    "/" = {
      device = "/dev/disk/by-uuid/42065c7e-d0aa-4de8-a913-014cf59d48ac";
      fsType = "ext4";
    };

    "/boot" = {
      device = "/dev/disk/by-uuid/4064-A1BE";
      fsType = "vfat";
    };

    "/home" = {
      device = "/dev/disk/by-uuid/082ec5d2-238e-4713-9c37-31b1cb0fb8c3";
      fsType = "ext4";
    };
  };

  swapDevices = [ { device = "/dev/disk/by-uuid/d93788f7-1b94-4687-8313-055d17f42b7e"; } ];

  # high-resolution display
  # hardware.video.hidpi.enable = lib.mkDefault true;

  # Enable firmware
  hardware.enableAllFirmware = true;

  # i2c support
  hardware.i2c.enable = true;

  boot = {
    initrd.availableKernelModules = [
      "nvme"
      "xhci_pci"
      "ahci"
      "usb_storage"
      "usbhid"
      "sd_mod"
    ];
    initrd.kernelModules = [ ];

    kernelPackages = pkgs.linuxPackages_latest;
    kernelModules = [
      "kvm-amd"
      "apple-mfi-fastcharge"
      "zenpower"
      "nf_nat_ftp"
    ];
    kernelParams = [ "amd_pstate.shared_mem=1" ];
    extraModulePackages = with config.boot.kernelPackages; [
      cpupower
      # rtl88x2bu
      zenpower
    ];

    loader = {
      systemd-boot = {
        enable = true;
        configurationLimit = 10;
      };
      efi.canTouchEfiVariables = true;
    };
  };

  time.timeZone = "Europe/Amsterdam";

  networking = {
    hostName = "loki";
    useDHCP = false;
    networkmanager.enable = false;
    useNetworkd = true;

    firewall = {
      trustedInterfaces = [
        "lo"
        "tailscale0"
      ];
      allowedTCPPorts = [
        # NFS
        111
        2049
        4100
        4101
        4102
        20048

        # Horus System V2
        12345
        5555
        5556

        # Elixir/Phoenix dev environment
        4000

        # SteamLink
        27036
        27037
      ];

      allowedUDPPorts = [
        # NFS
        111
        2049
        4100
        4101
        4102
        20048

        # SteamLink
        27031
        27036

        # WireGuard
        51820
      ];

      allowedTCPPortRanges = [
        # Sonos / noson
        {
          from = 1400;
          to = 1410;
        }
      ];

      allowedUDPPortRanges = [
        # Sunshine
        {
          from = 47998;
          to = 48000;
        }
        # Sonos / noson / pulseaudio
        {
          from = 1400;
          to = 1410;
        }
      ];
    };

    wireless.iwd = {
      enable = true;
      settings = {
        General = {
          EnableNetworkConfiguration = true;
        };
      };
    };
  };

  security = {
    sudo-rs = {
      enable = true;
    };
    sudo.enable = false;
    pam.services.swaylock = {
      unixAuth = true;
      setLoginUid = true;
      enableGnomeKeyring = true;
      allowNullPassword = true;
      updateWtmp = true;
      startSession = true;
    };
  };

  systemd = {

    network = {
      enable = true;

      wait-online = {
        anyInterface = true;
      };

      netdevs = {
        "10-horus0" = {
          netdevConfig = {
            Kind = "wireguard";
            MTUBytes = "1420";
            Name = "horus0";
          };

          wireguardConfig = {
            PrivateKeyFile = config.sops.secrets.wireguard-horus-privkey.path;
            ListenPort = 51820;
          };

          wireguardPeers = [
            {
              PublicKey = "6faxlUG8+F7uVrKk/OJqqy5k2+OzrhXc/cV6Zsfbl0c=";
              AllowedIPs = [
                "192.168.4.0/23"
                "192.168.6.0/24"
                "192.168.7.0/24"
                "192.168.8.0/24"
              ];
              Endpoint = "212.45.34.195:51820";
              PersistentKeepalive = 25;
            }
          ];
        };
      };

      networks = {
        "40-enp4s0" = {
          matchConfig = {
            Name = "enp4s0";
          };

          networkConfig = {
            DHCP = "yes";
            IPv6AcceptRA = true;
          };
        };
        "40-horus0" = {
          matchConfig = {
            Name = "horus0";
          };

          linkConfig = {
            ActivationPolicy = "manual";
          };

          networkConfig = {
            DHCP = "no";
            DNS = "192.168.4.1";
            Domains = [
              "bedum.horus.nu"
              "internal.horus.nu"
            ];
          };

          address = [ "10.10.4.2/24" ];

          routes = [
            {
              Destination = "192.168.4.0/23";
              Scope = "link";
            }
            {
              Destination = "192.168.6.0/24";
              Scope = "link";
            }
            {
              Destination = "192.168.7.0/24";
              Scope = "link";
            }
            {
              Destination = "192.168.8.0/24";
              Scope = "link";
            }
          ];
        };
      };

      links = {
        "40-enp4s0" = {
          matchConfig = {
            OriginalName = "enp4s0";
          };
          linkConfig = {
            WakeOnLan = "magic";
          };
        };
      };
    };
  };

  services = {
    udev = {
      extraHwdb = ''
        evdev:name:ELECOM TrackBall Mouse HUGE TrackBall:*
          ID_INPUT_KEY=1
          KEYBOARD_KEY_90008=red
          KEYBOARD_KEY_90007=copy
          KEYBOARD_KEY_90006=paste
      '';

      extraRules = ''
        ACTION=="add", ATTRS{idVendor}=="0951", ATTRS{idProduct}=="1666", NAME=keys
        ACTION=="add", ATTRS{idVendor}=="0781", ATTRS{idProduct}=="55b1", NAME=vault
      '';
    };

    openssh.enable = true;

    colord.enable = true;

    udisks2 = {
      enable = true;
    };

    envfs.enable = true;
    cpupower-gui.enable = true;
    teamviewer.enable = true;
    sunshine = {
      enable = true;
      capSysAdmin = true;
      # user = "erwin";
      openFirewall = true;
    };
    nfs.server = {
      enable = true;
      exports = ''
        /home/erwin/proxmox-backup 10.0.0.0/24(rw,sync,no_subtree_check,anonuid=1000,anongid=100,all_squash)
      '';
      lockdPort = 4101;
      mountdPort = 4102;
      statdPort = 4100;
    };
  };

  programs = {
    sway = {
      enable = true;
      package = pkgs.swayfx;
      wrapperFeatures = {
        gtk = true;
        base = true;
      };
      extraPackages = with pkgs; [
        swaylock
        swayidle
      ];
    };
    river.enable = true;

    gnome-disks.enable = true;
    # ssh.startAgent = true;

    gamemode = {
      enable = true;
      settings = {
        general = {
          renice = 5;
        };
        custom = {
          start = "${pkgs.libnotify}/bin/notify-send 'GameMode started'";
          end = "${pkgs.libnotify}/bin/notify-send 'GameMode ended'";
        };
      };
    };

    appimage = {
      enable = true;
      binfmt = true;
    };

    ryzen-monitor-ng.enable = true;

    nix-ld = {
      enable = true;
      package = nix-ld-rs.packages.${pkgs.hostPlatform.system}.nix-ld-rs;
      libraries = with pkgs; [
        alsa-lib
        at-spi2-atk
        at-spi2-core
        atk
        cairo
        cups
        curl
        dbus
        expat
        fontconfig
        freetype
        fuse3
        gdk-pixbuf
        glib
        gtk3
        icu
        libGL
        libappindicator-gtk3
        libdrm
        libglvnd
        libnotify
        libpulseaudio
        libunwind
        libusb1
        libuuid
        libxkbcommon
        mesa
        nspr
        nss
        openssl
        pango
        pipewire
        sqlite
        stdenv.cc.cc
        systemd
        vulkan-loader
        xorg.libX11
        xorg.libXScrnSaver
        xorg.libXcomposite
        xorg.libXcursor
        xorg.libXdamage
        xorg.libXext
        xorg.libXfixes
        xorg.libXi
        xorg.libXrandr
        xorg.libXrender
        xorg.libXtst
        xorg.libxcb
        xorg.libxkbfile
        xorg.libxshmfence
        zlib
      ];
    };
  };

  powerManagement = {
    cpuFreqGovernor = "ondemand";
  };

  environment = {
    sessionVariables = {
      AMD_VULKAN_ICD = "RADV";
      # WLR_RENDERER = "vulkan";
    };
    systemPackages = with pkgs; [
      incus
      iwgtk
      tailscale
    ];
  };

  nix.settings.post-build-hook =
    let
      inherit (attic.packages.${pkgs.system}) attic-client;
      cachedPackagePatterns = builtins.concatStringsSep "|" [ "mongodb" ];
    in
    pkgs.writeScript "upload-to-cache" ''
      set -eu
      set -f
      export IFS=' '

      OUT_PATHS=$(echo -n ''${OUT_PATHS} | ${pkgs.gawk}/bin/awk 'BEGIN { RS = " "; ORS = " "; } $0 ~ /(${cachedPackagePatterns})/ { print $0 }')
      if [[ -z "''${OUT_PATHS}" ]]; then
        echo "No matching packages to upload"
        exit 0
      fi
      echo "Uploading paths to cache " ''${OUT_PATHS}
      exec ${attic-client}/bin/attic push main ''${OUT_PATHS}
    '';

  sops.defaultSopsFile = ./secrets.yaml;
  sops.secrets = {
    ha_now_playing_token = {
      owner = "erwin";
    };
    gh_token = {
      owner = "erwin";
    };
    renovate_env = {
      owner = "erwin";
    };
    livebook-env = {
      owner = "erwin";
    };
    livebook-password = {
      owner = "erwin";
    };
    wireguard-horus-privkey = {
      owner = "systemd-network";
    };
    k3s-token = { };
  };

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "22.05"; # Did you read the comment?
}