router: firewall: proper filtering for hosts proxied by cloudflare

Retiring OPNsense will take a while, in the meantime it should work together

flake.lock

@@ -1,5 +1,25 @@
 {
   "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1742957044,
+        "narHash": "sha256-gwW0tBIA77g6qq45y220drTy0DmThF3fJMwVFUtYV9c=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "ce287a5cd3ef78203bc78021447f937a988d9f6f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "nixlib": {
       "locked": {
         "lastModified": 1736643958,
@@ -23,11 +43,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1737057290,
+        "lastModified": 1742568034,
-        "narHash": "sha256-3Pe0yKlCc7EOeq1X/aJVDH0CtNL+tIBm49vpepwL1MQ=",
+        "narHash": "sha256-QaMEhcnscfF2MqB7flZr+sLJMMYZPnvqO4NYf9B4G38=",
         "owner": "nix-community",
         "repo": "nixos-generators",
-        "rev": "d002ce9b6e7eb467cd1c6bb9aef9c35d191b5453",
+        "rev": "42ee229088490e3777ed7d1162cb9e9d8c3dbb11",
         "type": "github"
       },
       "original": {
@@ -38,11 +58,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1738142207,
+        "lastModified": 1742669843,
-        "narHash": "sha256-NGqpVVxNAHwIicXpgaVqJEJWeyqzoQJ9oc8lnK9+WC4=",
+        "narHash": "sha256-G5n+FOXLXcRx+3hCJ6Rt6ZQyF1zqQ0DL0sWAMn2Nk0w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9d3ae807ebd2981d593cddd0080856873139aa40",
+        "rev": "1e5b653dff12029333a6546c11e108ede13052eb",
         "type": "github"
       },
       "original": {
@@ -52,10 +72,35 @@
         "type": "github"
       }
     },
+    "plasma-manager": {
+      "inputs": {
+        "home-manager": [
+          "home-manager"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1742765550,
+        "narHash": "sha256-2vVIh2JrL6GAGfgCeY9e6iNKrBjs0Hw3bGQEAbwVs68=",
+        "owner": "nix-community",
+        "repo": "plasma-manager",
+        "rev": "b70be387276e632fe51232887f9e04e2b6ef8c16",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "plasma-manager",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
+        "home-manager": "home-manager",
         "nixos-generators": "nixos-generators",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "plasma-manager": "plasma-manager"
       }
     }
   },

flake.nix

@@ -5,17 +5,22 @@
     nixpkgs = {
       url = "github:NixOS/nixpkgs/nixos-unstable";
     };
-    nixos-generators = {
-      url = "github:nix-community/nixos-generators";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    plasma-manager = {
+      url = "github:nix-community/plasma-manager";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.home-manager.follows = "home-manager";
+    };
+    nixos-generators = {
+      url = "github:nix-community/nixos-generators";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
-  outputs = { self, nixpkgs, nixos-generators, home-manager }: {
+  outputs = { self, nixpkgs, home-manager, plasma-manager, nixos-generators }: {
     nixosConfigurations = {
       Yura-PC = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
@@ -23,6 +28,17 @@
           ./modules
           ./hosts/common.nix
           ./hosts/Yura-PC
+          # https://nix-community.github.io/home-manager/index.xhtml#sec-flakes-nixos-module
+          home-manager.nixosModules.home-manager
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.sharedModules = [ plasma-manager.homeManagerModules.plasma-manager ];
+
+            home-manager.users.cazzzer = import ./home;
+            # Optionally, use home-manager.extraSpecialArgs to pass
+            # arguments to home.nix
+          }
         ];
       };
       VM = nixpkgs.lib.nixosSystem {
@@ -31,16 +47,6 @@
           ./modules
           ./hosts/common.nix
           ./hosts/vm
-
-          home-manager.nixosModules.home-manager
-          {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.users.jdoe = import ./home.nix;
-
-            # Optionally, use home-manager.extraSpecialArgs to pass
-            # arguments to home.nix
-          }
         ];
       };
       router = nixpkgs.lib.nixosSystem {

home/default.nix

@@ -0,0 +1,241 @@
+{ config, lib, pkgs, ... }:
+let
+  defaultFont = {
+    family = "Noto Sans";
+    pointSize = 14;
+  };
+in
+{
+  # Home Manager needs a bit of information about you and the paths it should
+  # manage.
+  home.username = "cazzzer";
+  home.homeDirectory = "/home/cazzzer";
+
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
+
+  home.sessionVariables = {
+    EDITOR = "micro";
+    SHELL = "fish";
+  };
+
+  services.gnome-keyring = {
+    enable = true;
+    components = [ "pkcs11" "ssh" ];
+  };
+
+  services.darkman = {
+    enable = true;
+    settings = {
+      lat = 37.3387;
+      lng = -121.8853;
+    };
+    lightModeScripts = {
+      plasma-color = "plasma-apply-colorscheme BreezeLight";
+    };
+    darkModeScripts = {
+      plasma-color = "plasma-apply-colorscheme BreezeDark";
+    };
+  };
+
+  programs.fish = {
+    enable = true;
+    shellInit = "set fish_greeting";
+    shellAliases = {
+      # Replace ls with exa
+      ls = "exa -al --color=always --group-directories-first --icons"; # preferred listing
+      la = "exa -a --color=always --group-directories-first --icons";  # all files and dirs
+      ll = "exa -l --color=always --group-directories-first --icons";  # long format
+      lt = "exa -aT --color=always --group-directories-first --icons"; # tree listing
+      "l." = "exa -a | rg '^\.'";                                      # show only dotfiles
+      
+      # Replace cat with bat
+      cat = "bat";
+    };
+    # alias for nix shell with flake packages
+    functions.add.body = ''
+      set -x packages 'nixpkgs#'$argv
+      nix shell $packages
+    '';
+    interactiveShellInit = ''
+      fastfetch
+    '';
+  };
+
+  programs.starship = {
+    enable = true;
+    enableFishIntegration = true;
+    settings = {
+      format = lib.concatStrings [
+        "$all"
+        "$time"
+        "$cmd_duration"
+        "$line_break"
+        "$jobs"
+        "$status"
+        "$character"
+      ];
+      username = {
+        format = " [╭─$user]($style)@";
+        style_user = "bold red";
+        style_root = "bold red";
+        show_always = true;
+      };
+      hostname = {
+        format = "[$hostname]($style) in ";
+        style = "bold dimmed red";
+        ssh_only = false;
+      };
+      directory = {
+        style = "purple";
+        truncation_length = 0;
+        truncate_to_repo = true;
+        truncation_symbol = "repo: ";
+      };
+      git_status = {
+        style = "white";
+        ahead = "⇡\${count}";
+        diverged = "⇕⇡\${ahead_count}⇣\${behind_count}";
+        behind = "⇣\${count}";
+        deleted = "x";
+      };
+      cmd_duration = {
+        min_time = 1000;
+        format = "took [$duration]($style) ";
+      };
+      time = {
+        format = " 🕙 $time($style) ";
+        time_format = "%T";
+        style = "bright-white";
+        disabled = false;
+      };
+      character = {
+        success_symbol = " [╰─λ](bold red)";
+        error_symbol = " [×](bold red)";
+      };
+      status = {
+        symbol = "🔴";
+        format = "[\\[$symbol$status_common_meaning$status_signal_name$status_maybe_int\\]]($style)";
+        map_symbol = true;
+        disabled = false;
+      };
+    };
+  };
+
+  programs.plasma = {
+    enable = true;
+    overrideConfig = true;
+    workspace.iconTheme = "Tela-circle";
+    fonts = {
+      general = defaultFont;
+      fixedWidth = defaultFont // { family = "Hack"; };
+      small = defaultFont // { pointSize = defaultFont.pointSize - 2; };
+      toolbar = defaultFont;
+      menu = defaultFont;
+      windowTitle = defaultFont;
+    };
+    input.keyboard.layouts = [
+      { layout = "us"; displayName = "us"; }
+      { layout = "minimak-4"; displayName = "us4"; }
+      { layout = "ru"; displayName = "ru"; }
+    ];
+    kwin.virtualDesktops.number = 2;
+    session.sessionRestore.restoreOpenApplicationsOnLogin = "startWithEmptySession";
+    shortcuts = {
+      # kmix.mic_mute = "ScrollLock";
+      kmix.mic_mute = ["Microphone Mute" "ScrollLock" "Meta+Volume Mute,Microphone Mute" "Meta+Volume Mute,Mute Microphone"];
+      plasmashell.show-barcode = "Meta+M";
+      kwin."Window Maximize" = [ "Meta+F" "Meta+PgUp,Maximize Window" ];
+      "KDE Keyboard Layout Switcher"."Switch to Next Keyboard Layout" = "Meta+Space";
+    };
+    hotkeys.commands."launch-konsole" = {
+      name = "Launch Konsole";
+      key = "Meta+Alt+C";
+      command = "konsole";
+    };
+    configFile = {
+      kdeglobals.KDE.AnimationDurationFactor = 0.5;
+      kdeglobals.General.accentColorFromWallpaper = true;
+      kwinrc.Wayland.InputMethod = {
+        value = "org.fcitx.Fcitx5.desktop";
+        shellExpand = true;
+      };
+      dolphinrc.General.ShowFullPath = true;
+      kactivitymanagerdrc = {
+        activities."809dc779-bf5b-49e6-8e3f-cbe283cb05b6" = "Default";
+        activities."b34a506d-ac4f-4797-8c08-6ef45bc49341" = "Fun";
+        activities-icons."809dc779-bf5b-49e6-8e3f-cbe283cb05b6" = "keyboard";
+        activities-icons."b34a506d-ac4f-4797-8c08-6ef45bc49341" = "preferences-desktop-gaming";
+      };
+    };
+  };
+
+  xdg.configFile = {
+    "fcitx5/conf/wayland.conf".text = "Allow Overriding System XKB Settings=False";
+  };
+
+  # This value determines the Home Manager release that your configuration is
+  # compatible with. This helps avoid breakage when a new Home Manager release
+  # introduces backwards incompatible changes.
+  #
+  # You should not change this value, even if you update Home Manager. If you do
+  # want to update the value, then make sure to first check the Home Manager
+  # release notes.
+  home.stateVersion = "24.11"; # Please read the comment before changing.
+
+  # The home.packages option allows you to install Nix packages into your
+  # environment.
+  # home.packages = [
+    # # Adds the 'hello' command to your environment. It prints a friendly
+    # # "Hello, world!" when run.
+    # pkgs.hello
+
+    # # It is sometimes useful to fine-tune packages, for example, by applying
+    # # overrides. You can do that directly here, just don't forget the
+    # # parentheses. Maybe you want to install Nerd Fonts with a limited number of
+    # # fonts?
+    # (pkgs.nerdfonts.override { fonts = [ "FantasqueSansMono" ]; })
+
+    # # You can also create simple shell scripts directly inside your
+    # # configuration. For example, this adds a command 'my-hello' to your
+    # # environment:
+    # (pkgs.writeShellScriptBin "my-hello" ''
+    #   echo "Hello, ${config.home.username}!"
+    # '')
+  # ];
+
+  # Home Manager is pretty good at managing dotfiles. The primary way to manage
+  # plain files is through 'home.file'.
+  # home.file = {
+    # # Building this configuration will create a copy of 'dotfiles/screenrc' in
+    # # the Nix store. Activating the configuration will then make '~/.screenrc' a
+    # # symlink to the Nix store copy.
+    # ".screenrc".source = dotfiles/screenrc;
+
+    # # You can also set the file content immediately.
+    # ".gradle/gradle.properties".text = ''
+    #   org.gradle.console=verbose
+    #   org.gradle.daemon.idletimeout=3600000
+    # '';
+  # };
+
+  # Home Manager can also manage your environment variables through
+  # 'home.sessionVariables'. These will be explicitly sourced when using a
+  # shell provided by Home Manager. If you don't want to manage your shell
+  # through Home Manager then you have to manually source 'hm-session-vars.sh'
+  # located at either
+  #
+  #  ~/.nix-profile/etc/profile.d/hm-session-vars.sh
+  #
+  # or
+  #
+  #  ~/.local/state/nix/profiles/profile/etc/profile.d/hm-session-vars.sh
+  #
+  # or
+  #
+  #  /etc/profiles/per-user/cazzzer/etc/profile.d/hm-session-vars.sh
+  #
+  # home.sessionVariables = {
+    # EDITOR = "emacs";
+  # };
+}

hosts/Yura-PC/default.nix

@@ -125,6 +125,10 @@
 
       # Nix
       nixd
+
+      # Gleam
+      gleam
+      beamMinimal26Packages.erlang
     ];
   };
 
@@ -152,7 +156,6 @@
   virtualisation.docker.enable = true;
   virtualisation.docker.enableOnBoot = false;
   virtualisation.docker.package = pkgs.docker_27;
-  virtualisation.docker.storageDriver = "zfs";
 
   # https://discourse.nixos.org/t/firefox-does-not-use-kde-window-decorations-and-cursor/32132/3
   # programs.dconf.enable = true;
@@ -206,13 +209,35 @@
   # fonts.fontconfig.allowBitmaps = false;
   
   environment.systemPackages = with pkgs; [
-    darkman
     dust
-    efibootmgr
     eza
     fastfetch
     fd
+    helix
+    micro
+    ripgrep
+    starship
+    tealdeer
+  ] ++ [
+    efibootmgr
     ffmpeg
+    file
+    fq
+    gnumake
+    ijq
+    jq
+    ldns
+    mediainfo
+    rbw
+    restic
+    resticprofile
+    rclone
+    ripgrep-all
+    rustscan
+    whois
+    yt-dlp
+  ] ++ [
+    darkman
     host-spawn # for flatpaks
     kdePackages.filelight
     kdePackages.flatpak-kcm
@@ -220,30 +245,22 @@
     kdePackages.yakuake
     gcr
     gnome-keyring # config for this and some others
-    gnumake
-    helix
-    jetbrains-toolbox # or maybe do invidual ones?
-    # jetbrains.rust-rover
-    jetbrains.clion
-    jetbrains.pycharm-professional
-    jetbrains.webstorm
-    android-studio
-    mediainfo
-    micro
     mpv
     nextcloud-client
     lxqt.pavucontrol-qt
     pinentry
-    rbw
-    ripgrep
-    rustup
-    starship
-    tealdeer
     tela-circle-icon-theme
     virt-viewer
     waypipe
-    whois
+  ] ++ [
-    yt-dlp
+    # jetbrains.rust-rover
+    # jetbrains.goland
+    jetbrains.clion
+    jetbrains.idea-ultimate
+    jetbrains.pycharm-professional
+    jetbrains.webstorm
+    android-studio
+    rustup
   ];
 
   # Some programs need SUID wrappers, can be configured further or are
@@ -261,8 +278,8 @@
 
   # Open ports in the firewall.
   # networking.nftables.enable = true;
-  networking.firewall.allowedTCPPorts = [ 8080 ];
+  networking.firewall.allowedTCPPorts = [ 8080 22000 ];
-  # networking.firewall.allowedUDPPorts = [ ... ];
+  networking.firewall.allowedUDPPorts = [ 22000 ];
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;
 

hosts/common.nix

@@ -1,11 +1,4 @@
-{ config, pkgs, inputs, ... }: {
+{ config, pkgs, ... }: {
-  imports = [
-    inputs.home-manager.nixosModules.home-manager
-  ];
-
-  home-manager.useGlobalPkgs = true;
-  home-manager.useUserPackages = true;
-
   # Allow unfree packages
   nixpkgs.config.allowUnfree = true;
 

hosts/router/default.nix

@@ -1,37 +1,14 @@
 { config, lib, pkgs, ... }:
-let
-  domain = "cazzzer.com";
-  ldomain = "l.${domain}";
 
-  if_wan = "wan";
-  if_lan = "lan";
-  if_lan10 = "lan.10";
-  if_lan20 = "lan.20";
-
-  wan_ip4 = "192.168.1.61/24";
-  wan_gw4 = "192.168.1.254";
-
-  lan_p4 = "10.19.1"; # .0/24
-  lan10_p4 = "10.19.10"; # .0/24
-  lan20_p4 = "10.19.20"; # .0/24
-
-  pd_from_wan = ""; # ::/60
-  lan_p6 = "${pd_from_wan}9"; # ::/64
-  lan10_p6 = "${pd_from_wan}a"; # ::/64
-  lan20_p6 = "${pd_from_wan}2"; # ::/64
-
-  ula_p = "fdab:07d3:581d"; # ::/48
-  lan_ula_p = "${ula_p}:0001"; # ::/64
-  lan10_ula_p = "${ula_p}:0010"; # ::/64
-  lan20_ula_p = "${ula_p}:0020"; # ::/64
-  lan_ula_addr = "${lan_ula_p}::1";
-  lan10_ula_addr = "${lan10_ula_p}::1";
-  lan20_ula_addr = "${lan20_ula_p}::1";
-in
 {
   imports =
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
+      ./ifconfig.nix
+      ./firewall.nix
+      ./dns.nix
+      ./kea.nix
+      ./services.nix
     ];
 
   # Bootloader.
@@ -41,470 +18,21 @@ in
     "sysrq_always_enabled=1"
   ];
 
+  boot.loader.timeout = 2;
   boot.loader.systemd-boot.configurationLimit = 5;
   boot.kernelPackages = pkgs.linuxKernel.packages.linux_6_12;
   boot.growPartition = true;
 
-  environment.etc.hosts.mode = "0644";
   networking.hostName = "grouter";
 
-  # It is impossible to do multiple prefix requests with networkd,
-  # so I use dhcpcd for this
-  # https://github.com/systemd/systemd/issues/22571
-  networking.dhcpcd.enable = true;
-  # https://github.com/systemd/systemd/issues/22571#issuecomment-2094905496
-  # https://gist.github.com/csamsel/0f8cca3b2e64d7e4cc47819ec5ba9396
-  networking.dhcpcd.extraConfig = ''
-    duid
-    ipv6only
-    nodhcp6
-    noipv6rs
-    nohook resolv.conf, yp, hostname, ntp
-    option rapid_commit
-
-    interface ${if_wan}
-      ipv6rs
-      dhcp6
-
-      # this doesn't play well with networkd
-      # ia_na
-      # ia_pd 1 ${if_lan}/0
-      # ia_pd 2 ${if_lan10}/0
-      # ia_pd 3 ${if_lan20}/0
-
-      # request the leases just for routing (so that the att box knows we're here)
-      # actual ip assignments are static, based on $pd_from_wan
-      ia_pd 1 -
-      ia_pd 2 -
-      # ia_pd 3 -
-      # ia_pd 4 -
-      # ia_pd 5 -
-      # ia_pd 6 -
-      # ia_pd 7 -
-      # ia_pd 8 -
-  '';
-
-  networking.useNetworkd = true;
-  systemd.network.enable = true;
-  systemd.network = {
-    # Global options
-    config.networkConfig = {
-      IPv4Forwarding = true;
-      IPv6Forwarding = true;
-    };
-
-    # This is applied by udev, not networkd
-    # https://nixos.wiki/wiki/Systemd-networkd
-    # https://nixos.org/manual/nixos/stable/#sec-rename-ifs
-    links = {
-      "10-wan" = {
-        matchConfig.PermanentMACAddress = "bc:24:11:4f:c9:c4";
-        linkConfig.Name = if_wan;
-      };
-      "10-lan" = {
-        matchConfig.PermanentMACAddress = "bc:24:11:83:d8:de";
-        linkConfig.Name = if_lan;
-      };
-    };
-
-    netdevs = {
-      "10-vlan10" = {
-        netdevConfig = {
-          Kind = "vlan";
-          Name = if_lan10;
-        };
-        vlanConfig.Id = 10;
-      };
-      "10-vlan20" = {
-        netdevConfig = {
-          Kind = "vlan";
-          Name = if_lan20;
-        };
-        vlanConfig.Id = 20;
-      };
-    };
-
-    networks = {
-      "10-wan" = {
-        matchConfig.Name = if_wan;
-        networkConfig = {
-          # start a DHCP Client for IPv4 Addressing/Routing
-          # DHCP = "ipv4";
-          # accept Router Advertisements for Stateless IPv6 Autoconfiguraton (SLAAC)
-          # let dhcpcd handle this
-          Address = [ wan_ip4 ];
-          IPv6AcceptRA = false;
-        };
-        routes = [ { Gateway = wan_gw4; } ];
-        # make routing on this interface a dependency for network-online.target
-        linkConfig.RequiredForOnline = "routable";
-      };
-      "20-lan" = {
-        matchConfig.Name = "lan";
-        vlan = [
-          if_lan10
-          if_lan20
-        ];
-        networkConfig = {
-          IPv4Forwarding = true;
-          IPv6SendRA = true;
-          Address = [ "${lan_p4}.1/24" ];
-        };
-        ipv6Prefixes = [
-          {
-            # AddressAutoconfiguration = false;
-            Prefix = "${lan_p6}::/64";
-            Assign = true;
-            # Token = [ "static:::1" "eui64" ];
-            Token = [ "static:::1" ];
-          }
-          {
-            Prefix = "${lan_ula_p}::/64";
-            Assign = true;
-            Token = [ "static:::1" ];
-          }
-        ];
-        ipv6SendRAConfig = {
-          Managed = true;
-          OtherInformation = true;
-          EmitDNS = true;
-          DNS = [ lan_ula_addr ];
-        };
-      };
-      "30-vlan10"  = {
-        matchConfig.Name = if_lan10;
-        networkConfig = {
-          IPv6SendRA = true;
-          Address = [ "${lan10_p4}.1/24" ];
-        };
-        ipv6Prefixes = [
-          {
-            Prefix = "${lan10_p6}::/64";
-            Assign = true;
-            Token = [ "static:::1" ];
-          }
-          {
-            Prefix = "${lan10_ula_p}::/64";
-            Assign = true;
-            Token = [ "static:::1" ];
-          }
-        ];
-      };
-      "30-vlan20"  = {
-        matchConfig.Name = if_lan20;
-        networkConfig = {
-          IPv6SendRA = true;
-          Address = [ "${lan20_p4}.1/24" ];
-        };
-        ipv6Prefixes = [
-          {
-            Prefix = "${lan20_p6}::/64";
-            Assign = true;
-            Token = [ "static:::1" ];
-          }
-          {
-            Prefix = "${lan20_ula_p}::/64";
-            Assign = true;
-            Token = [ "static:::1" ];
-          }
-        ];
-      };
-    };
-  };
-
-  networking.firewall.enable = false;
-  networking.nftables.enable = true;
-  networking.nftables.tables.firewall = {
-    family = "inet";
-    content = ''
-      define WAN_IF = "${if_wan}"
-      define LAN_IF = "${if_lan}"
-      define LAN_IPV4_SUBNET = ${lan_p4}.0/24
-      define LAN_IPV6_SUBNET = ${lan_p6}::/64
-      define LAN_IPV6_ULA = ${lan_ula_p}::/64
-      define LAN_IPV4_HOST = ${lan_p4}.100
-      define LAN_IPV6_HOST = ${lan_p6}::1:1000
-
-      define ALLOWED_TCP_PORTS = { ssh, https, 19999 }
-      define ALLOWED_UDP_PORTS = { domain }
-
-      chain input {
-          type filter hook input priority filter; policy drop;
-
-          # Allow established and related connections
-          ct state established,related accept
-
-          # Allow all traffic from loopback interface
-          iifname lo accept
-
-          # Allow ICMPv6 on link local addrs
-          ip6 nexthdr icmpv6 ip6 saddr fe80::/10 accept
-          ip6 nexthdr icmpv6 ip6 daddr fe80::/10 accept # TODO: not sure if necessary
-
-          # Allow all ICMPv6 from LAN
-          iifname $LAN_IF ip6 saddr { $LAN_IPV6_SUBNET, $LAN_IPV6_ULA } ip6 nexthdr icmpv6 accept
-          # Allow DHCPv6 client traffic
-          ip6 daddr { fe80::/10, ff02::/16 } udp dport dhcpv6-server accept
-
-          # Allow all ICMP from LAN
-          iifname $LAN_IF ip saddr $LAN_IPV4_SUBNET ip protocol icmp accept
-
-          # Allow specific services from LAN
-          iifname $LAN_IF ip saddr $LAN_IPV4_SUBNET tcp dport $ALLOWED_TCP_PORTS accept
-          iifname $LAN_IF ip6 saddr { $LAN_IPV6_SUBNET, $LAN_IPV6_ULA } tcp dport $ALLOWED_TCP_PORTS accept
-          iifname $LAN_IF ip saddr $LAN_IPV4_SUBNET udp dport $ALLOWED_UDP_PORTS accept
-          iifname $LAN_IF ip6 saddr { $LAN_IPV6_SUBNET, $LAN_IPV6_ULA } udp dport $ALLOWED_UDP_PORTS accept
-
-          # Allow SSH from WAN (if needed)
-          iifname $WAN_IF tcp dport ssh accept
-      }
-
-      chain forward {
-          type filter hook forward priority filter; policy drop;
-
-          # Allow established and related connections
-          ct state established,related accept
-
-          # Port forwarding
-          iifname $WAN_IF tcp dport https ip daddr $LAN_IPV4_HOST accept
-
-          # Allowed IPv6 ports
-          iifname $WAN_IF tcp dport https ip6 daddr $LAN_IPV6_HOST accept
-
-          # Allow traffic from LAN to WAN
-          iifname $LAN_IF ip saddr $LAN_IPV4_SUBNET oifname $WAN_IF accept
-          iifname $LAN_IF ip6 saddr $LAN_IPV6_SUBNET oifname $WAN_IF accept
-      }
-
-      chain output {
-          # Accept anything out of self by default
-          type filter hook output priority filter; policy accept;
-      }
-
-      chain prerouting {
-          # Initial step, accept by default
-          type nat hook prerouting priority dstnat; policy accept;
-
-          # Port forwarding
-          iifname $WAN_IF tcp dport https dnat ip to $LAN_IPV4_HOST
-      }
-
-      chain postrouting {
-          # Last step, accept by default
-          type nat hook postrouting priority srcnat; policy accept;
-
-          # Masquerade LAN addrs
-          # theoretically shouldn't need to check the input interface here,
-          # as it would be filtered by the forwarding rules
-          oifname $WAN_IF ip saddr $LAN_IPV4_SUBNET masquerade
-
-          # Optional IPv6 masquerading (big L if enabled)
-          # oifname $WAN_IF ip6 saddr $LAN_IPV6_ULA masquerade
-      }
-    '';
-  };
-
-  services.kea.dhcp4.enable = true;
-  services.kea.dhcp4.settings = {
-    interfaces-config.interfaces = [
-      if_lan
-    ];
-    dhcp-ddns.enable-updates = true;
-    ddns-qualifying-suffix = "default.${ldomain}";
-    subnet4 = [
-      {
-        id = 1;
-        subnet = "${lan_p4}.0/24";
-        ddns-qualifying-suffix = "lan.${ldomain}";
-        pools = [ { pool = "${lan_p4}.100 - ${lan_p4}.199"; } ];
-        option-data = [
-          {
-            name = "routers";
-            data = "${lan_p4}.1";
-          }
-          {
-            name = "domain-name-servers";
-            data = "${lan_p4}.1";
-          }
-        ];
-        reservations = [
-          {
-            hw-address = "bc:24:11:b7:27:4d";
-            hostname = "archy";
-            ip-address = "${lan_p4}.69";
-          }
-        ];
-      }
-    ];
-  };
-
-  services.kea.dhcp6.enable = true;
-  services.kea.dhcp6.settings = {
-    interfaces-config.interfaces = [
-      if_lan
-    ];
-    # TODO: https://kea.readthedocs.io/en/latest/arm/ddns.html#dual-stack-environments
-    dhcp-ddns.enable-updates = true;
-    ddns-qualifying-suffix = "default6.${ldomain}";
-    subnet6 = [
-      {
-        id = 1;
-        interface = if_lan;
-        subnet = "${lan_p6}::/64";
-        ddns-qualifying-suffix = "lan6.${ldomain}";
-        rapid-commit = true;
-        pools = [ { pool = "${lan_p6}::1:1000/116"; } ];
-        reservations = [
-          {
-            duid = "00:04:59:c3:ce:9a:08:cf:fb:b7:fe:74:9c:e3:b7:44:bf:01";
-            hostname = "archy";
-            ip-addresses = [ "${lan_p6}::69" ];
-          }
-        ];
-      }
-    ];
-  };
-
-  services.kea.dhcp-ddns.enable = true;
-  services.kea.dhcp-ddns.settings = {
-    forward-ddns = {
-      ddns-domains = [
-        {
-          name = "${ldomain}.";
-          dns-servers = [
-            {
-              ip-address = "::1";
-              port = 1053;
-            }
-          ];
-        }
-      ];
-    };
-  };
-
-  services.resolved.enable = false;
-  networking.resolvconf.enable = true;
-  networking.resolvconf.useLocalResolver = true;
-
-  services.adguardhome.enable = true;
-  services.adguardhome.mutableSettings = false;
-  services.adguardhome.settings = {
-    dns = {
-      bootstrap_dns = [ "1.1.1.1" "9.9.9.9" ];
-      upstream_dns = [
-        "quic://p0.freedns.controld.com"  # Default upstream
-        "[/${ldomain}/][::1]:1053"        # Local domains to Knot (ddns)
-      ];
-    };
-    # https://adguard-dns.io/kb/general/dns-filtering-syntax/
-    user_rules = [
-      # DNS rewrites
-      "|grouter.${domain}^$dnsrewrite=${lan_ula_addr}"
-
-      # Allowed exceptions
-      "@@||googleads.g.doubleclick.net"
-    ];
-  };
-
-  services.knot.enable = true;
-  services.knot.settings = {
-    server = {
-      # listen = "0.0.0.0@1053";
-      listen = "::1@1053";
-    };
-    # TODO: templates
-    zone = [
-      {
-        domain = ldomain;
-        storage = "/var/lib/knot/zones";
-        file = "${ldomain}.zone";
-        acl = [ "allow_localhost_update" ];
-      }
-    ];
-    acl = [
-      {
-        id = "allow_localhost_update";
-        address = [ "::1" "127.0.0.1" ];
-        action = [ "update" ];
-      }
-    ];
-  };
-  # Ensure the zone file exists
-  system.activationScripts.knotZoneFile = ''
-    ZONE_DIR="/var/lib/knot/zones"
-    ZONE_FILE="$ZONE_DIR/${ldomain}.zone"
-
-    # Create the directory if it doesn't exist
-    mkdir -p "$ZONE_DIR"
-
-    # Check if the zone file exists
-    if [ ! -f "$ZONE_FILE" ]; then
-      # Create the zone file with a basic SOA record
-      # Serial; Refresh; Retry; Expire; Negative Cache TTL;
-      echo "${ldomain}. 3600 SOA ns.${ldomain}. admin.${ldomain}. 1 86400 900 691200 3600" > "$ZONE_FILE"
-      echo "Created new zone file: $ZONE_FILE"
-    else
-      echo "Zone file already exists: $ZONE_FILE"
-    fi
-
-    # Ensure proper ownership and permissions
-    chown -R knot:knot "/var/lib/knot"
-    chmod 644 "$ZONE_FILE"
-  '';
-
-  # https://wiki.nixos.org/wiki/Prometheus
-  services.prometheus = {
-    enable = true;
-    exporters = {
-      # TODO: DNS, Kea, Knot, other exporters
-      node = {
-        enable = true;
-        enabledCollectors = [ "systemd" ];
-      };
-    };
-    scrapeConfigs = [
-      {
-        job_name = "node";
-        static_configs = [{
-          targets = [ "localhost:${toString config.services.prometheus.exporters.node.port}" ];
-        }];
-      }
-    ];
-  };
-
-  # https://wiki.nixos.org/wiki/Grafana#Declarative_configuration
-  services.grafana = {
-    enable = true;
-    settings.server.http_port = 3001;
-    provision = {
-      enable = true;
-      datasources.settings.datasources = [
-        {
-          name = "Prometheus";
-          type = "prometheus";
-          url = "http://localhost:${toString config.services.prometheus.port}";
-        }
-      ];
-    };
-  };
-
-  services.caddy = {
-    enable = true;
-    virtualHosts."grouter.${domain}".extraConfig = ''
-      reverse_proxy localhost:${toString config.services.grafana.settings.server.http_port}
-      tls internal
-    '';
-  };
-
-  # services.netdata.enable = true;
-
   # Enable the X11 windowing system.
   # You can disable this if you're only using the Wayland session.
   services.xserver.enable = false;
 
   # Enable the KDE Plasma Desktop Environment.
   # Useful for debugging with wireshark.
-  services.displayManager.sddm.enable = false;
+  # services.displayManager.sddm.enable = true;
+  hardware.graphics.enable = true;
   services.displayManager.sddm.wayland.enable = true;
   services.desktopManager.plasma6.enable = true;
   # No need for audio in VM
@@ -534,7 +62,7 @@ in
     description = "Yura";
     uid = 1000;
     group = "cazzzer";
-    extraGroups = [ "wheel" "docker" "wireshark" ];
+    extraGroups = [ "wheel" "wireshark" ];
   };
 
   programs.firefox.enable = true;

hosts/router/dns.nix

@@ -0,0 +1,129 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  domain = vars.domain;
+  ldomain = vars.ldomain;
+  sysdomain = vars.sysdomain;
+  ifs = vars.ifs;
+
+  alpinaDomains = [
+    "|"
+    "|nc."
+    "|sonarr."
+    "|radarr."
+    "|prowlarr."
+    "|qbit."
+    "|gitea."
+    "|traefik."
+    "|auth."
+    "||s3."
+    "|minio."
+    "|jellyfin."
+    "|whoami."
+    "|grafana."
+    "|influxdb."
+    "|uptime."
+    "|opnsense."
+    "|vpgen."
+    "|woodpecker."
+    "||pgrok."
+    "|sync."
+  ];
+in
+{
+  # https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes
+  # For upstream quic dns
+  boot.kernel.sysctl."net.core.wmem_max" = 7500000;
+  boot.kernel.sysctl."net.core.rmem_max" = 7500000;
+
+  services.resolved.enable = false;
+  networking.resolvconf.enable = true;
+  networking.resolvconf.useLocalResolver = true;
+
+  services.adguardhome.enable = true;
+  services.adguardhome.mutableSettings = false;
+  services.adguardhome.settings = {
+    dns = {
+      bootstrap_dns = [ "1.1.1.1" "9.9.9.9" ];
+      upstream_dns = [
+        # Default upstreams
+        "quic://p0.freedns.controld.com"
+        "tls://one.one.one.one"
+        "tls://dns.quad9.net"
+
+        # Adguard uses upstream and not rewrite rules to resolve cname rewrites,
+        # and obviously my sysdomain entries don't exist in cloudflare.
+        "[/${sysdomain}/][::1]"           # Sys domains to self (for cname rewrites)
+
+        "[/${ldomain}/][::1]:1053"        # Local domains to Knot (ddns)
+        "[/home/][${ifs.lan.ulaPrefix}::250]"  # .home domains to opnsense (temporary)
+      ];
+    };
+    # https://adguard-dns.io/kb/general/dns-filtering-syntax/
+    user_rules = [
+      # DNS rewrites
+      "|grouter.${domain}^$dnsrewrite=${ifs.lan.ulaAddr}"
+      "|pve-1.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.5"
+      "|pve-1.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::5:1"
+      "|pve-3.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.7"
+      "|pve-3.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::7:1"
+      "|truenas.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.10"
+      "|truenas.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::20d0:43ff:fec6:3192"
+      "|debbi.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.11"
+      "|debbi.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::11:1"
+      "|etappi.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.12"
+      "|etappi.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::12:1"
+
+      # Lab DNS rewrites
+      "||lab.${domain}^$dnsrewrite=etappi.${sysdomain}"
+
+      # Allowed exceptions
+      "@@||googleads.g.doubleclick.net"
+    ]
+      # Alpina DNS rewrites
+      ++ map (host: "${host}${domain}^$dnsrewrite=debbi.${sysdomain}") alpinaDomains;
+  };
+
+  services.knot.enable = true;
+  services.knot.settings = {
+    # server.listen = "0.0.0.0@1053";
+    server.listen = "::1@1053";
+    zone = [
+      {
+        domain = ldomain;
+        storage = "/var/lib/knot/zones";
+        file = "${ldomain}.zone";
+        acl = [ "allow_localhost_update" ];
+      }
+    ];
+    acl = [
+      {
+        id = "allow_localhost_update";
+        address = [ "::1" "127.0.0.1" ];
+        action = [ "update" ];
+      }
+    ];
+  };
+  # Ensure the zone file exists
+  system.activationScripts.knotZoneFile = ''
+    ZONE_DIR="/var/lib/knot/zones"
+    ZONE_FILE="$ZONE_DIR/${ldomain}.zone"
+
+    # Create the directory if it doesn't exist
+    mkdir -p "$ZONE_DIR"
+
+    # Check if the zone file exists
+    if [ ! -f "$ZONE_FILE" ]; then
+      # Create the zone file with a basic SOA record
+      # Serial; Refresh; Retry; Expire; Negative Cache TTL;
+      echo "${ldomain}. 3600 SOA ns.${ldomain}. admin.${ldomain}. 1 86400 900 691200 3600" > "$ZONE_FILE"
+      echo "Created new zone file: $ZONE_FILE"
+    else
+      echo "Zone file already exists: $ZONE_FILE"
+    fi
+
+    # Ensure proper ownership and permissions
+    chown -R knot:knot "/var/lib/knot"
+    chmod 644 "$ZONE_FILE"
+  '';
+}

hosts/router/firewall.nix

@@ -0,0 +1,182 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  links = vars.links;
+  ifs = vars.ifs;
+  pdFromWan = vars.pdFromWan;
+in
+{
+  networking.firewall.enable = false;
+  networking.nftables.enable = true;
+  networking.nftables.tables.firewall = {
+    family = "inet";
+    content = ''
+      define ZONE_WAN_IFS = { ${ifs.wan.name} }
+      define ZONE_LAN_IFS = {
+          ${ifs.lan.name},
+          ${ifs.lan10.name},
+          ${ifs.lan20.name},
+          ${ifs.lan30.name},
+          ${ifs.lan40.name},
+          ${ifs.lan50.name},
+      }
+      define OPNSENSE_NET6 = ${pdFromWan}d::/64
+      define ZONE_LAN_EXTRA_NET6 = {
+          ${ifs.lan20.net6},  # needed since packets can come in from wan on these addrs
+          $OPNSENSE_NET6,
+      }
+      define RFC1918 = { 10.0.0.0/8, 172.12.0.0/12, 192.168.0.0/16 }
+      define CLOUDFLARE_NET6 = {
+          # https://www.cloudflare.com/ips-v6
+          # TODO: figure out a better way to get addrs dynamically from url
+          2400:cb00::/32,
+          2606:4700::/32,
+          2803:f800::/32,
+          2405:b500::/32,
+          2405:8100::/32,
+          2a06:98c0::/29,
+          2c0f:f248::/32,
+      }
+
+      define ALLOWED_TCP_PORTS = { ssh, https }
+      define ALLOWED_UDP_PORTS = { bootps, dhcpv6-server, domain }
+
+      map port_forward_v4 {
+          type inet_proto . inet_service : ipv4_addr . inet_service
+          elements = {
+              tcp . 8006 : ${ifs.lan50.p4}.10 . 8006
+          }
+      }
+      set port_forward_v6 {
+          type inet_proto . ipv6_addr . inet_service
+          # elements = {}
+      }
+      set cloudflare_forward_v6 {
+          type ipv6_addr
+          elements = {
+              ${ifs.lan.p6}::11:1,
+          }
+      }
+
+      chain input {
+          type filter hook input priority filter; policy drop;
+
+          # Drop router adverts from self
+          # peculiarity due to wan and lan20 being bridged
+          # TODO: figure out a less jank way to do this
+          iifname $ZONE_WAN_IFS ip6 saddr ${links.lanLL} icmpv6 type nd-router-advert log prefix "self radvt: " drop
+          # iifname $ZONE_WAN_IFS ip6 saddr ${links.lanLL} ip6 nexthdr icmpv6 log prefix "self icmpv6: " drop
+          # iifname $ZONE_WAN_IFS ip6 saddr ${links.lanLL} log prefix "self llv6: " drop
+          # iifname $ZONE_WAN_IFS ip6 saddr ${links.lanLL} log drop
+          # iifname $ZONE_LAN_IFS ip6 saddr ${links.wanLL} log drop
+
+          # Allow established and related connections
+          # All icmp stuff should (theoretically) be handled by ct related
+          # https://serverfault.com/a/632363
+          ct state established,related accept
+
+          # However, that doesn't happen for router advertisements from what I can tell
+          # TODO: more testing
+          # Allow ICMPv6 on local addrs
+          ip6 nexthdr icmpv6 ip6 saddr { fe80::/10, ${pdFromWan}0::/60 } accept
+          ip6 nexthdr icmpv6 ip6 daddr fe80::/10 accept # TODO: not sure if necessary
+
+          # Allow all traffic from loopback interface
+          iif lo accept
+
+          # Allow DHCPv6 traffic
+          # I thought dhcpv6-client traffic would be accepted by established/related,
+          # but apparently not.
+          ip6 daddr { fe80::/10, ff02::/16 } th dport { dhcpv6-client, dhcpv6-server } accept
+
+          # WAN zone input rules
+          iifname $ZONE_WAN_IFS jump zone_wan_input
+          # LAN zone input rules
+          iifname $ZONE_LAN_IFS accept
+          iifname $ZONE_LAN_IFS jump zone_lan_input
+          ip6 saddr $ZONE_LAN_EXTRA_NET6 jump zone_lan_input
+
+          # log
+      }
+
+      chain forward {
+          type filter hook forward priority filter; policy drop;
+
+          # Allow established and related connections
+          ct state established,related accept
+
+          # WAN zone forward rules
+          iifname $ZONE_WAN_IFS jump zone_wan_forward
+          # LAN zone forward rules
+          iifname $ZONE_LAN_IFS jump zone_lan_forward
+          ip6 saddr $ZONE_LAN_EXTRA_NET6 jump zone_lan_forward
+      }
+
+      chain zone_wan_input {
+          # Allow SSH from WAN (if needed)
+          tcp dport ssh accept
+      }
+
+      chain zone_wan_forward {
+          # Port forwarding
+          ct status dnat accept
+
+          # Allowed IPv6 ports
+          meta l4proto . ip6 daddr . th dport @port_forward_v6 accept
+
+          # Allowed IPv6 from cloudflare
+          ip6 saddr $CLOUDFLARE_NET6 ip6 daddr @cloudflare_forward_v6 accept
+      }
+
+      chain zone_lan_input {
+          # Allow all ICMPv6 from LAN
+          ip6 nexthdr icmpv6 accept
+
+          # Allow all ICMP from LAN
+          ip protocol icmp accept
+
+          # Allow specific services from LAN
+          tcp dport $ALLOWED_TCP_PORTS accept
+          udp dport $ALLOWED_UDP_PORTS accept
+      }
+
+      chain zone_lan_forward {
+          # Allow port forwarded targets
+          # ct status dnat accept
+
+          # Allow all traffic from LAN to WAN, except ULAs
+          oifname $ZONE_WAN_IFS ip6 saddr fd00::/8 drop  # Not sure if needed
+          oifname $ZONE_WAN_IFS accept;
+
+          # Allow traffic between LANs
+          oifname $ZONE_LAN_IFS accept
+      }
+
+      chain output {
+          # Accept anything out of self by default
+          type filter hook output priority filter; policy accept;
+          # NAT reflection
+          # oif lo ip daddr != 127.0.0.0/8 dnat ip to meta l4proto . th dport map @port_forward_v4
+      }
+
+      chain prerouting {
+          # Initial step, accept by default
+          type nat hook prerouting priority dstnat; policy accept;
+
+          # Port forwarding
+          fib daddr type local dnat ip to meta l4proto . th dport map @port_forward_v4
+      }
+
+      chain postrouting {
+          # Last step, accept by default
+          type nat hook postrouting priority srcnat; policy accept;
+
+          # Masquerade LAN addrs
+          oifname $ZONE_WAN_IFS ip saddr $RFC1918 masquerade
+
+          # Optional IPv6 masquerading (big L if enabled, don't forget to allow forwarding)
+          # oifname $ZONE_WAN_IFS ip6 saddr fd00::/8 masquerade
+      }
+    '';
+  };
+}

hosts/router/ifconfig.nix

@@ -0,0 +1,180 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  links = vars.links;
+  ifs = vars.ifs;
+  pdFromWan = vars.pdFromWan;
+  ulaPrefix = vars.ulaPrefix;
+
+  mkVlanDev = { id, name }: {
+    netdevConfig = {
+      Kind = "vlan";
+      Name = name;
+    };
+    vlanConfig.Id = id;
+  };
+
+  mkLanConfig = ifObj: {
+    matchConfig.Name = ifObj.name;
+    networkConfig = {
+      IPv4Forwarding = true;
+      IPv6SendRA = true;
+      Address = [ ifObj.addr4Sized ifObj.addr6Sized ifObj.ulaAddrSized ];
+    };
+    ipv6Prefixes = [
+      {
+        Prefix = ifObj.net6;
+        Assign = true;
+        # Token = [ "static::1" "eui64" ];
+        Token = [ "static:${ifObj.ip6Token}" ];
+      }
+      {
+          Prefix = ifObj.ulaNet;
+          Assign = true;
+          Token = [ "static:${ifObj.ulaToken}" ];
+      }
+    ];
+    ipv6RoutePrefixes = [ { Route = "${ulaPrefix}::/48"; } ];
+    ipv6SendRAConfig = {
+      # don't manage the att box subnet
+      # should work fine either way though
+      Managed = (ifObj.p6 != "${pdFromWan}0");
+      OtherInformation = (ifObj.p6 != "${pdFromWan}0");
+      EmitDNS = true;
+      DNS = [ ifObj.ulaAddr ];
+    };
+  };
+in
+{
+  # It is impossible to do multiple prefix requests with networkd,
+  # so I use dhcpcd for this
+  # https://github.com/systemd/systemd/issues/22571
+  # https://github.com/systemd/systemd/issues/22571#issuecomment-2094905496
+  # https://gist.github.com/csamsel/0f8cca3b2e64d7e4cc47819ec5ba9396
+  networking.dhcpcd.enable = true;
+  networking.dhcpcd.allowInterfaces = [ ifs.wan.name ];
+  networking.dhcpcd.extraConfig = ''
+    debug
+    nohook resolv.conf, yp, hostname, ntp
+
+    interface ${ifs.wan.name}
+      ipv6only
+      duid
+      ipv6rs
+      dhcp6
+      # option rapid_commit
+
+      # DHCPv6 addr
+      ia_na
+
+      # DHCPv6 Prefix Delegation
+
+      # request the leases just for routing (so that the att box knows we're here)
+      # actual ip assignments are static, based on $pdFromWan
+      ia_pd 1/${ifs.lan.net6} -
+      ia_pd 10/${ifs.lan10.net6} -
+      # ia_pd 20/${pdFromWan}d::/64 -  # for opnsense (legacy services)
+      ia_pd 30/${ifs.lan30.net6} -
+      ia_pd 40/${ifs.lan40.net6} -
+      ia_pd 50/${ifs.lan50.net6} -
+      # ia_pd 7 -
+      # ia_pd 8 -
+
+      # the leases can be assigned to the interfaces,
+      # but this doesn't play well with networkd
+      # ia_pd 1 ${ifs.lan.name}/0
+      # ia_pd 2 ${ifs.lan10.name}/0
+      # ia_pd 3 ${ifs.lan20.name}/0
+  '';
+
+  networking.useNetworkd = true;
+  systemd.network.enable = true;
+  systemd.network = {
+    # Global options
+    config.networkConfig = {
+      IPv4Forwarding = true;
+      IPv6Forwarding = true;
+    };
+
+    # This is applied by udev, not networkd
+    # https://nixos.wiki/wiki/Systemd-networkd
+    # https://nixos.org/manual/nixos/stable/#sec-rename-ifs
+    links = {
+      "10-wan" = {
+        matchConfig.PermanentMACAddress = links.wanMAC;
+        linkConfig.Name = ifs.wan.name;
+      };
+      "10-lan" = {
+        matchConfig.PermanentMACAddress = links.lanMAC;
+        linkConfig.Name = ifs.lan.name;
+      };
+    };
+
+    netdevs = {
+      "10-vlan10" = mkVlanDev { id = 10; name = ifs.lan10.name; };
+      "10-vlan20" = mkVlanDev { id = 20; name = ifs.lan20.name; };
+      "10-vlan30" = mkVlanDev { id = 30; name = ifs.lan30.name; };
+      "10-vlan40" = mkVlanDev { id = 40; name = ifs.lan40.name; };
+      "10-vlan50" = mkVlanDev { id = 50; name = ifs.lan50.name; };
+    };
+
+    networks = {
+      "10-wan" = {
+        matchConfig.Name = ifs.wan.name;
+        # make routing on this interface a dependency for network-online.target
+        linkConfig.RequiredForOnline = "routable";
+        networkConfig = {
+          # start a DHCP Client for IPv4 Addressing/Routing
+          # DHCP = "ipv4";
+          # accept Router Advertisements for Stateless IPv6 Autoconfiguraton (SLAAC)
+          # let dhcpcd handle this
+          Address = [ ifs.wan.addr4Sized ];
+          IPv6AcceptRA = false;
+          KeepConfiguration = true;
+        };
+        routes = [
+          { Gateway = ifs.wan.gw4; }
+        ];
+      };
+      "20-lan" = (mkLanConfig ifs.lan) // {
+        vlan = [
+          ifs.lan10.name
+          ifs.lan20.name
+          ifs.lan30.name
+          ifs.lan40.name
+          ifs.lan50.name
+        ];
+      };
+      "30-vlan10" = mkLanConfig ifs.lan10;
+      "30-vlan20" = mkLanConfig ifs.lan20;
+      "30-vlan30" = mkLanConfig ifs.lan30;
+      "30-vlan40" = mkLanConfig ifs.lan40;
+      "30-vlan50" = mkLanConfig ifs.lan50;
+    };
+  };
+
+  # For some reason, the interfaces stop receiving route solicitations after a while.
+  # Regular router adverts still get sent out at intervals, but this breaks dhcp6 clients.
+  # Restarting networkd makes it work again, I have no clue why.
+  # This is jank af, but I've tried a bunch of other stuff with no success
+  # and I'm giving up (for now).
+  systemd.timers."restart-networkd" = {
+    wantedBy = [ "timers.target" ];
+      timerConfig = {
+        OnBootSec = "1m";
+        OnUnitActiveSec = "1m";
+        Unit = "restart-networkd.service";
+      };
+  };
+
+  systemd.services."restart-networkd" = {
+    script = ''
+      set -eu
+      ${pkgs.systemd}/bin/systemctl restart systemd-networkd
+    '';
+    serviceConfig = {
+      Type = "oneshot";
+      User = "root";
+    };
+  };
+}

hosts/router/kea.nix

@@ -0,0 +1,183 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  ldomain = vars.ldomain;
+  ifs = vars.ifs;
+
+  mkDhcp4Subnet = id: ifObj: {
+    id = id;
+    subnet = ifObj.net4;
+    pools = [ { pool = "${ifObj.p4}.100 - ${ifObj.p4}.199"; } ];
+    ddns-qualifying-suffix = "4.${ifObj.domain}";
+    option-data = [
+      { name = "routers"; data = ifObj.addr4; }
+      { name = "domain-name-servers"; data = ifObj.addr4; }
+      { name = "domain-name"; data = "4.${ifObj.domain}"; }
+    ];
+  };
+
+  mkDhcp6Subnet = id: ifObj: {
+    id = id;
+    interface = ifObj.name;
+    subnet = ifObj.net6;
+    rapid-commit = true;
+    pools = [ { pool = "${ifObj.p6}::1:1000/116"; } ];
+    ddns-qualifying-suffix = "6.${ifObj.domain}";
+    option-data = [
+      { name = "domain-search"; data = "6.${ifObj.domain}"; }
+    ];
+  };
+
+  # Reservations added to Kea
+  reservations.lan.v4.reservations = [
+    {
+      hw-address = "64:66:b3:78:9c:09";
+      hostname = "openwrt";
+      ip-address = "${ifs.lan.p4}.2";
+    }
+    {
+      hw-address = "40:86:cb:19:9d:70";
+      hostname = "dlink-switchy";
+      ip-address = "${ifs.lan.p4}.3";
+    }
+    {
+      hw-address = "6c:cd:d6:af:4f:6f";
+      hostname = "netgear-switchy";
+      ip-address = "${ifs.lan.p4}.4";
+    }
+    {
+      hw-address = "74:d4:35:1d:0e:80";
+      hostname = "pve-1";
+      ip-address = "${ifs.lan.p4}.5";
+    }
+    {
+      hw-address = "00:25:90:f3:d0:e0";
+      hostname = "pve-2";
+      ip-address = "${ifs.lan.p4}.6";
+    }
+    {
+      hw-address = "a8:a1:59:d0:57:87";
+      hostname = "pve-3";
+      ip-address = "${ifs.lan.p4}.7";
+    }
+    {
+      hw-address = "22:d0:43:c6:31:92";
+      hostname = "truenas";
+      ip-address = "${ifs.lan.p4}.10";
+    }
+    {
+      hw-address = "1e:d5:56:ec:c7:4a";
+      hostname = "debbi";
+      ip-address = "${ifs.lan.p4}.11";
+    }
+    {
+      hw-address = "ee:42:75:2e:f1:a6";
+      hostname = "etappi";
+      ip-address = "${ifs.lan.p4}.12";
+    }
+  ];
+
+  reservations.lan.v6.reservations = [
+    {
+      duid = "00:03:00:01:64:66:b3:78:9c:09";
+      hostname = "openwrt";
+      ip-addresses = [ "${ifs.lan.p6}::1:2" ];
+    }
+    {
+      duid = "00:01:00:01:2e:c0:63:23:22:d0:43:c6:31:92";
+      hostname = "truenas";
+      ip-addresses = [ "${ifs.lan.p6}::10:1" ];
+    }
+    {
+      duid = "00:02:00:00:ab:11:09:41:25:21:32:71:e3:77";
+      hostname = "debbi";
+      ip-addresses = [ "${ifs.lan.p6}::11:1" ];
+    }
+    {
+      duid = "00:02:00:00:ab:11:6b:56:93:72:0b:3c:84:11";
+      hostname = "etappi";
+      ip-addresses = [ "${ifs.lan.p6}::12:1" ];
+    }
+  ];
+
+  reservations.lan20.v4.reservations = [
+    {
+      # Router
+      hw-address = "1c:3b:f3:da:5f:cc";
+      hostname = "archer-ax3000";
+      ip-address = "${ifs.lan20.p4}.2";
+    }
+    {
+      # Printer
+      hw-address = "30:cd:a7:c5:40:71";
+      hostname = "SEC30CDA7C54071";
+      ip-address = "${ifs.lan20.p4}.9";
+    }
+    {
+      # 3D Printer
+      hw-address = "20:f8:5e:ff:ae:5f";
+      hostname = "GS_ffae5f";
+      ip-address = "${ifs.lan20.p4}.11";
+    }
+    {
+      hw-address = "70:85:c2:d8:87:3f";
+      hostname = "Yura-PC";
+      ip-address = "${ifs.lan20.p4}.40";
+    }
+  ];
+in
+{
+  services.kea.dhcp4.enable = true;
+  services.kea.dhcp4.settings = {
+    interfaces-config.interfaces = [
+      ifs.lan.name
+      ifs.lan10.name
+      ifs.lan20.name
+      ifs.lan30.name
+      ifs.lan40.name
+      ifs.lan50.name
+    ];
+    dhcp-ddns.enable-updates = true;
+    ddns-qualifying-suffix = "4.default.${ldomain}";
+    subnet4 = [
+      ((mkDhcp4Subnet 1 ifs.lan) // reservations.lan.v4)
+      (mkDhcp4Subnet 10 ifs.lan10)
+      ((mkDhcp4Subnet 20 ifs.lan20) // reservations.lan20.v4)
+      (mkDhcp4Subnet 30 ifs.lan30)
+      (mkDhcp4Subnet 40 ifs.lan40)
+      (mkDhcp4Subnet 50 ifs.lan50)
+    ];
+  };
+
+  services.kea.dhcp6.enable = true;
+  services.kea.dhcp6.settings = {
+    interfaces-config.interfaces = [
+      ifs.lan.name
+      ifs.lan10.name
+      # ifs.lan20.name  # Managed by Att box
+      ifs.lan30.name
+      ifs.lan40.name
+      ifs.lan50.name
+    ];
+    # TODO: https://kea.readthedocs.io/en/latest/arm/ddns.html#dual-stack-environments
+    dhcp-ddns.enable-updates = true;
+    ddns-qualifying-suffix = "6.default.${ldomain}";
+    subnet6 = [
+      ((mkDhcp6Subnet 1 ifs.lan) // reservations.lan.v6)
+      (mkDhcp6Subnet 10 ifs.lan10)
+      (mkDhcp6Subnet 30 ifs.lan30)
+      (mkDhcp6Subnet 40 ifs.lan40)
+      (mkDhcp6Subnet 50 ifs.lan50)
+    ];
+  };
+
+  services.kea.dhcp-ddns.enable = true;
+  services.kea.dhcp-ddns.settings = {
+    forward-ddns.ddns-domains = [
+      {
+        name = "${ldomain}.";
+        dns-servers = [ { ip-address = "::1"; port = 1053; } ];
+      }
+    ];
+  };
+}

hosts/router/services.nix

@@ -0,0 +1,50 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  domain = vars.domain;
+in
+{
+  # https://wiki.nixos.org/wiki/Prometheus
+  services.prometheus = {
+    enable = true;
+    exporters = {
+      # TODO: DNS, Kea, Knot, other exporters
+      node = {
+        enable = true;
+        enabledCollectors = [ "systemd" ];
+      };
+    };
+    scrapeConfigs = [
+      {
+        job_name = "node";
+        static_configs = [{
+          targets = [ "localhost:${toString config.services.prometheus.exporters.node.port}" ];
+        }];
+      }
+    ];
+  };
+
+  # https://wiki.nixos.org/wiki/Grafana#Declarative_configuration
+  services.grafana = {
+    enable = true;
+    settings.server.http_port = 3001;
+    provision = {
+      enable = true;
+      datasources.settings.datasources = [
+        {
+          name = "Prometheus";
+          type = "prometheus";
+          url = "http://localhost:${toString config.services.prometheus.port}";
+        }
+      ];
+    };
+  };
+
+  services.caddy = {
+    enable = true;
+    virtualHosts."grouter.${domain}".extraConfig = ''
+      reverse_proxy localhost:${toString config.services.grafana.settings.server.http_port}
+      tls internal
+    '';
+  };
+}

hosts/router/vars.nix

@@ -0,0 +1,98 @@
+let
+  mkIfConfig = {
+    name_,
+    domain_,
+    p4_,  # /24
+    p6_,  # /64
+    ulaPrefix_,  # /64
+    token? 1,
+    ip6Token_? "::${toString token}",
+    ulaToken_? "::${toString token}",
+    }: rec {
+      name = name_;
+      domain = domain_;
+      p4 = p4_;
+      p4Size = 24;
+      net4 = "${p4}.0/${toString p4Size}";
+      addr4 = "${p4}.${toString token}";
+      addr4Sized = "${addr4}/${toString p4Size}";
+      p6 = p6_;
+      p6Size = 64;
+      net6 = "${p6}::/${toString p6Size}";
+      ip6Token = ip6Token_;
+      addr6 = "${p6}${ip6Token}";
+      addr6Sized = "${addr6}/${toString p6Size}";
+      ulaPrefix = ulaPrefix_;
+      ulaSize = 64;
+      ulaNet = "${ulaPrefix}::/${toString ulaSize}";
+      ulaToken = ulaToken_;
+      ulaAddr = "${ulaPrefix}${ulaToken}";
+      ulaAddrSized = "${ulaAddr}/${toString ulaSize}";
+    };
+in
+rec {
+  domain = "cazzzer.com";
+  ldomain = "l.${domain}";
+  sysdomain = "sys.${domain}";
+  links = {
+    wanMAC = "bc:24:11:4f:c9:c4";
+    lanMAC = "bc:24:11:83:d8:de";
+    wanLL = "fe80::be24:11ff:fe4f:c9c4";
+    lanLL = "fe80::be24:11ff:fe83:d8de";
+  };
+
+  p4 = "10.17";                      # .0.0/16
+  pdFromWan = "";  # ::/60
+  ulaPrefix = "fdab:07d3:581d";      # ::/48
+  ifs = rec {
+    wan = rec {
+      name = "wan";
+      addr4 = "192.168.1.61";
+      addr4Sized = "${addr4}/24";
+      gw4 = "192.168.1.254";
+    };
+    lan = mkIfConfig {
+      name_ = "lan";
+      domain_ = "lan.${ldomain}";
+      p4_ = "${p4}.1";                   # .0/24
+      p6_ = "${pdFromWan}f";             # ::/64
+      ulaPrefix_ = "${ulaPrefix}:0001";  # ::/64
+    };
+    lan10 = mkIfConfig {
+      name_ = "${lan.name}.10";
+      domain_ = "lab.${ldomain}";
+      p4_ = "${p4}.10";                  # .0/24
+      p6_ = "${pdFromWan}e";             # ::/64
+      ulaPrefix_ = "${ulaPrefix}:0010";  # ::/64
+    };
+    lan20 = mkIfConfig {
+      name_ = "${lan.name}.20";
+      domain_ = "life.${ldomain}";
+      p4_ = "${p4}.20";                  # .0/24
+      p6_ = "${pdFromWan}0";             # ::/64 managed by Att box
+      ulaPrefix_ = "${ulaPrefix}:0020";  # ::/64
+      ip6Token_ = "::1:1";  # override ipv6 for lan20, since the Att box uses ::1 here
+    };
+    lan30 = mkIfConfig {
+      name_ = "${lan.name}.30";
+      domain_ = "iot.${ldomain}";
+      p4_ = "${p4}.30";                  # .0/24
+      p6_ = "${pdFromWan}c";             # ::/64
+      ulaPrefix_ = "${ulaPrefix}:0030";  # ::/64
+    };
+    lan40 = mkIfConfig {
+      name_ = "${lan.name}.40";
+      domain_ = "kube.${ldomain}";
+      p4_ = "${p4}.40";                  # .0/24
+      p6_ = "${pdFromWan}b";             # ::/64
+      ulaPrefix_ = "${ulaPrefix}:0040";  # ::/64
+    };
+    lan50 = mkIfConfig {
+      name_ = "${lan.name}.50";
+      domain_ = "prox.${ldomain}";
+      p4_ = "${p4}.50";                  # .0/24
+      p6_ = "${pdFromWan}a";             # ::/64
+      ulaPrefix_ = "${ulaPrefix}:0050";  # ::/64
+    };
+  };
+}

modules/mods/kb-input.nix

@@ -9,11 +9,21 @@ in {
   options = {
     mods.kb-input = {
       enable = lib.mkEnableOption "input method and custom keyboard layout";
+      enableMinimak = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Enable Minimak keyboard layout";
+      };
+      enableFcitx = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Enable Fcitx5 input method";
+      };
     };
   };
 
   config = lib.mkIf cfg.enable {
-    services.xserver.xkb.extraLayouts = {
+    services.xserver.xkb.extraLayouts = lib.mkIf cfg.enableMinimak {
       minimak-4 = {
         description = "English (US, Minimak-4)";
         languages = [ "eng" ];
@@ -31,9 +41,9 @@ in {
       };
     };
 
-    i18n.inputMethod = {
+    i18n.inputMethod = lib.mkIf cfg.enableFcitx {
-      type = "fcitx5";
       enable = true;
+      type = "fcitx5";
       fcitx5.waylandFrontend = true;
       fcitx5.plasma6Support = true;
       fcitx5.addons = [ pkgs.fcitx5-mozc ];