nixos-config/machines/mimir/configuration.nix

{
  nixos-hardware,
  ...
}:
{ pkgs, config, ... }:
{
  imports = [
    # Include the results of the hardware scan.
    nixos-hardware.nixosModules.common-cpu-amd
    nixos-hardware.nixosModules.common-cpu-amd-pstate
    nixos-hardware.nixosModules.common-pc-ssd

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

  # nixpkgs.config.allowUnfree = true;
  nixpkgs.config = {
    cudaSupport = true;
  };

  eboskma = {
    var.workSystem = true;
    users = {
      erwin = {
        enable = true;
        work = true;
        terminal = "Alacritty";
      };
    };

    base = {
      plymouth.enable = true;
      work = true;
      udev-rules = {
        nvidia = true;
      };
    };

    desktop = {
      enable = true;
      wayland = true;
    };
    podman = {
      enable = true;
      enableNvidia = true;
      # enableTcpSocket = true;
    };
    fonts.enable = true;
    gnome.enable = true;
    greetd = {
      enable = true;
      sway = true;
      wayvnc = true;
      wallpaper = ../../wallpapers/river-3840.png;
      output = {
        "DP-1" = {
          bg = "${../../wallpapers/river-3840.png} fill";
          mode = "3840x2160@60Hz";
          position = "0 0";
        };
        "DP-3" = {
          bg = "${../../wallpapers/river-3840.png} fill";
          mode = "3840x2160@60Hz";
          position = "3840 0";
        };
      };
      input = {
        "1241:662:USB-HID_Keyboard" = {
          xkb_layout = "us,us";
          xkb_variant = "colemak,";
          xkb_options = "lv3:ralt_switch,eurosign:5,caps:backspace,ctrl:nocaps,grp:sclk_toggle,grp_led:scroll";
          xkb_numlock = "enabled";
        };
        "1133:49257:Logitech_USB_Laser_Mouse" = {
          natural_scroll = "enabled";
          pointer_accel = "1";
        };
      };
    };
    kanata = {
      enable = true;
      devices = [ "/dev/input/by-id/usb-04d9_USB-HID_Keyboard-event-kbd" ];
    };
    lightdm.enable = false;
    networking.enable = true;
    nix-common = {
      enable = true;
      cross-systems = [ "aarch64-linux" ];
      gc-interval = "weekly";
    };
    regreet = {
      enable = false;
      wallpaper = ../../wallpapers/river-3840.png;
      wayvnc = true;
    };
    sound.enable = true;
    systemd.enable = true;
    tailscale.enable = true;
  };

  fileSystems = {
    "/" = {
      device = "/dev/disk/by-label/nixos";
      fsType = "ext4";
    };

    "/boot" = {
      device = "/dev/disk/by-label/boot";
      fsType = "vfat";
    };

    "/home" = {
      device = "/dev/disk/by-label/home";
      fsType = "ext4";
    };

    "/yocto" = {
      device = "/dev/disk/by-label/yocto";
      fsType = "ext4";
    };
  };

  swapDevices = [ { device = "/dev/disk/by-label/swap"; } ];

  hardware = {
    enableAllFirmware = true;
    nvidia = {
      open = false;
      modesetting.enable = true;
      powerManagement.enable = true; # Needed to make hibernate work properly
      forceFullCompositionPipeline = true;
    };

    graphics = {
      enable32Bit = true;
      extraPackages = with pkgs; [
        vaapiVdpau
        vulkan-validation-layers
      ];
    };
  };

  # Use the systemd-boot EFI boot loader.
  boot = {
    initrd = {
      availableKernelModules = [
        "nvme"
        "xhci_pci"
        "ahci"
        "usb_storage"
        "usbhid"
        "sd_mod"
      ];
      kernelModules = [ "dm-snapshot" ];
    };

    # NVIDIA driver is broken with Linux 6.11
    # kernelPackages = pkgs.linuxPackages_latest;
    kernelModules = [
      "kvm-amd"
      "apple-mfi-fastcharge"
      "zenpower"
    ];
    blacklistedKernelModules = [
      "k10temp"
    ];
    extraModulePackages = with config.boot.kernelPackages; [
      cpupower
      zenpower
    ];

    loader = {
      systemd-boot = {
        enable = true;
        configurationLimit = 15;
      };
      efi.canTouchEfiVariables = true;
    };
    # This triggers a warning on stateVersions < 23.11 if set to true
    swraid.enable = false;
  };

  time.timeZone = "Europe/Amsterdam";

  console = {
    font = "${pkgs.terminus_font}/share/consolefonts/ter-u28n.psf.gz";
    useXkbConfig = true;
  };

  # Enable new implementation of switch-to-configuration built in Rust
  system = {
    switch = {
      enable = false;
      enableNg = true;
    };
  };

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

    nftables.enable = true;

    firewall = {
      trustedInterfaces = [
        "tailscale0"
        "enp5s0f1"
      ];

      allowedTCPPorts = [
        # Horus System V2
        12345
        5555
        5556

        # sccache server
        10501

        # Celantur
        7000
      ];
    };

    nat = {
      enable = true;
      externalInterface = "enp4s0";
    };

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

  powerManagement = {
    cpuFreqGovernor = "ondemand";
  };

  security = {
    sudo.enable = false;
    sudo-rs.enable = true;

    apparmor = {
      enable = true;
    };
    pam.services.swaylock = {
      unixAuth = true;
      setLoginUid = true;
      enableGnomeKeyring = true;
      allowNullPassword = true;
      updateWtmp = true;
      startSession = true;
    };
  };

  systemd = {
    network = {
      enable = true;

      # wait-online.extraArgs = [ "--interface=enp4s0" ];
      wait-online.anyInterface = true;

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

      netdevs = {
        "11-horus1" = {
          netdevConfig = {
            Kind = "wireguard";
            MTUBytes = "1420";
            Name = "horus1";
          };

          wireguardConfig = {
            PrivateKeyFile = config.sops.secrets.wireguard-horus1-privkey.path;
          };

          wireguardPeers = [
            {
              PublicKey = "UZGk9xoXhpHwM6jDWQvYDgJKk/OfcX9gw4iM9bPJJ00=";
              AllowedIPs = [
                "10.128.0.0/23"
              ];
              EndPoint = "212.45.34.195:51822";
              PersistentKeepalive = 25;
            }
          ];
        };
      };

      networks = {
        "40-enp4s0" = {
          enable = true;
          DHCP = "yes";

          domains = [
            "internal.horus.nu"
            "bedum.horus.nu"
          ];

          dhcpV4Config = {
            RouteMetric = 64;
          };

          matchConfig = {
            Name = "enp4s0";
          };
        };

        "40-enp5s0f1" = {
          enable = true;
          linkConfig = {
            RequiredForOnline = "no";
          };
          matchConfig = {
            Name = "enp5s0f1";
          };

          addresses = [
            { Address = "192.168.42.10/24"; }
          ];
        };
        "41-horus1" = {
          matchConfig = {
            Name = "horus1";
          };

          linkConfig = {
            ActivationPolicy = "manual";
          };

          networkConfig = {
            DHCP = "no";
          };

          address = [ "10.128.0.2/23" ];
        };
      };
    };

    services = {
      ollama = {
        after = [ "tailscaled.service" ];
        preStart = "${pkgs.coreutils}/bin/sleep 10"; # Tailscale reports ready before getting an IP address
      };
    };
  };

  # programs.ssh.startAgent = true;
  programs = {
    sway = {
      enable = true;
      wrapperFeatures = {
        gtk = true;
        base = true;
      };
      extraPackages = with pkgs; [
        swaylock
        swayidle
      ];
      extraOptions = [ "--unsupported-gpu" ];
    };
    gnome-disks.enable = true;
    nix-ld = {
      enable = true;
      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
        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
      ];
    };
  };

  services = {
    openssh.enable = true;

    envfs.enable = true;
    cpupower-gui.enable = true;
    flatpak.enable = true;

    teamviewer.enable = true;

    ddccontrol.enable = true;

    udisks2 = {
      enable = true;
    };

    udev = {
      extraRules = ''
        ACTION=="add", ATTRS{idVendor}=="0781", ATTRS{idProduct}=="55b1", ATTRS{serial}=="A20033BEAC21B773", NAME="vault"
      '';
    };

    xserver = {
      videoDrivers = [ "nvidia" ];

      # screenSection = ''
      #   Option "metamodes" "DP-0: nvidia-auto-select +0+0 {ForceFullCompositionPipeline=On, AllowGSYNCCompatible=On}, DP-4: nvidia-auto-select +3840+0 {ForceFullCompositionPipeline=On, AllowGSYNCCompatible=On}"
      #   Option "TripleBuffer" "On"
      # '';

      # libinput = {
      #   enable = true;
      #   mouse = {
      #     naturalScrolling = true;
      #     accelSpeed = "1.0";
      #   };
      #   touchpad = {
      #     naturalScrolling = true;
      #   };
      # };
    };

    icecream.daemon = {
      enable = true;

      schedulerHost = "icecream.internal.horus.nu";
      noRemote = true;
      openFirewall = false;
      openBroadcast = true;
    };

    ollama = {
      enable = true;
      acceleration = "cuda";
      host = "100.119.162.110";
      loadModels = [
        "mistral"
      ];
    };
  };

  environment = {
    systemPackages = with pkgs; [
      appimage-run
      iwgtk
      peakperf
    ];

    sessionVariables = {
      WLR_NO_HARDWARE_CURSORS = "1";
      GBM_BACKEND = "nvidia-drm";
      __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    };
  };

  sops = {
    defaultSopsFile = ./secrets.yaml;

    secrets = {
      wireguard-horus1-privkey = {
        owner = "systemd-network";
      };
    };
  };

  # 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 = "22.11"; # Did you read the comment?
}