diff --git a/hosts/router/default.nix b/hosts/router/default.nix
index ae3dbdc..a592f7b 100644
--- a/hosts/router/default.nix
+++ b/hosts/router/default.nix
@@ -1,279 +1,14 @@
 { config, lib, pkgs, ... }:
-let
-  domain = "cazzzer.com";
-  ldomain = "l.${domain}";
-  sysdomain = "sys.${domain}";
 
-  lanLL = "fe80::be24:11ff:fe83:d8de";
-
-  mkIfConfig = {
-    name_,
-    domain_,
-    p4_,  # /24
-    p6_,  # /64
-    ulaPrefix_,  # /64
-    token? 1,
-    }: 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 = "::${toString token}";
-      addr6 = "${p6}${ip6Token}";
-      addr6Sized = "${addr6}/${toString p6Size}";
-      ulaPrefix = ulaPrefix_;
-      ulaSize = 64;
-      ulaNet = "${ulaPrefix}::/${toString ulaSize}";
-      ulaAddr = "${ulaPrefix}${ip6Token}";
-      ulaAddrSized = "${ulaAddr}/${toString ulaSize}";
-    };
-
-  p4 = "10.17";                      # .0.0/16
-  pdFromWan = "";  # ::/60
-  ulaPrefix = "fdab:07d3:581d";      # ::/48
-  ifs = rec {
-    wan = rec {
-      name = "wan";
-      addr4 = "192.168.1.61";
-      addr4Sized = "${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_ = "";                          # p6 not defined for lan20, managed by Att box
-      ulaPrefix_ = "${ulaPrefix}:0020";  # ::/64
-    };
-    lan30 = mkIfConfig {
-      name_ = "${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
-    };
-  };
-
-  # 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 = "${ifs.lan20.p4}.40";
-    }
-  ];
-
-  alpinaDomains = [
-    "|"
-    "|nc."
-    "|sonarr."
-    "|radarr."
-    "|prowlarr."
-    "|qbit."
-    "|gitea."
-    "|traefik."
-    "|auth."
-    "||s3."
-    "|minio."
-    "|jellyfin."
-    "|whoami."
-    "|grafana."
-    "|influxdb."
-    "|uptime."
-    "|opnsense."
-    "|vpgen."
-    "|woodpecker."
-    "||pgrok."
-    "|sync."
-  ];
-
-  mkVlanDev = { id, name }: {
-    netdevConfig = {
-      Kind = "vlan";
-      Name = name;
-    };
-    vlanConfig.Id = id;
-  };
-
-  mkLanConfig = ifObj: {
-    matchConfig.Name = ifObj.name;
-    networkConfig = {
-      IPv4Forwarding = true;
-      IPv6SendRA = true;
-      Address = [ ifObj.addr4Sized ];
-    };
-    ipv6Prefixes = lib.optionals (ifObj.p6 != "") [ {
-        Prefix = ifObj.net6;
-        Assign = true;
-        # Token = [ "static::1" "eui64" ];
-        Token = [ "static:${ifObj.ip6Token}" ];
-      } ]
-      ++
-      lib.optionals (ifObj.ulaPrefix != "") [ {
-          Prefix = ifObj.ulaNet;
-          Assign = true;
-          Token = [ "static:${ifObj.ip6Token}" ];
-      } ];
-    ipv6RoutePrefixes = [ { Route = "${ulaPrefix}::/48"; } ];
-    ipv6SendRAConfig = {
-      Managed = (ifObj.p6 != "");
-      OtherInformation = (ifObj.p6 != "");
-      EmitDNS = true;
-      DNS = [ ifObj.ulaAddr ];
-    };
-  };
-
-  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}"; }
-    ];
-  };
-in
 {
   imports =
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
+      ./ifconfig.nix
+      ./firewall.nix
+      ./dns.nix
+      ./kea.nix
+      ./services.nix
     ];
 
   # Bootloader.
@@ -287,431 +22,9 @@ in
   boot.loader.systemd-boot.configurationLimit = 5;
   boot.kernelPackages = pkgs.linuxKernel.packages.linux_6_12;
   boot.growPartition = true;
-  # 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;
 
   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 ${ifs.wan.name}
-      ipv6rs
-      dhcp6
-
-      # this doesn't play well with networkd
-      # ia_na
-      # ia_pd 1 ${ifs.lan.name}/0
-      # ia_pd 2 ${ifs.lan10.name}/0
-      # ia_pd 3 ${ifs.lan20.name}/0
-
-      # 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 -
-      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 = ifs.wan.name;
-      };
-      "10-lan" = {
-        matchConfig.PermanentMACAddress = "bc:24:11:83:d8:de";
-        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;
-        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;
-        };
-        routes = [ { Gateway = ifs.wan.gw4; } ];
-        # make routing on this interface a dependency for network-online.target
-        linkConfig.RequiredForOnline = "routable";
-      };
-      "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;
-    };
-  };
-
-  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 RFC1918 = { 10.0.0.0/8, 172.12.0.0/12, 192.168.0.0/16 }
-
-      define ALLOWED_TCP_PORTS = { ssh, https }
-      define ALLOWED_UDP_PORTS = { 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 = {
-              tcp . ${ifs.lan.p6}::1 . https
-          }
-      }
-
-      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
-          ip6 saddr ${lanLL} icmpv6 type nd-router-advert 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 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 traffic from loopback interface
-          iif lo accept
-
-          # Allow DHCPv6 client traffic
-          ip6 daddr { fe80::/10, ff02::/16 } udp dport dhcpv6-server accept
-
-          # WAN zone input rules
-          iifname $ZONE_WAN_IFS jump zone_wan_input
-          # LAN zone input rules
-          iifname $ZONE_LAN_IFS jump zone_lan_input
-      }
-
-      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
-      }
-
-      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
-      }
-
-      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 $ZONE_WAN_IFS ip6 saddr fd00::/8 masquerade
-      }
-    '';
-  };
-
-  services.kea.dhcp4.enable = true;
-  services.kea.dhcp4.settings = {
-    interfaces-config.interfaces = [
-      ifs.lan.name
-      ifs.lan10.name
-      ifs.lan20.name
-      ifs.lan30.name
-      ifs.lan40.name
-      ifs.lan50.name
-    ];
-    dhcp-ddns.enable-updates = true;
-    ddns-qualifying-suffix = "4.default.${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; } ];
-      }
-    ];
-  };
-
-  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
-        "[/${ldomain}/][::1]:1053"        # Local domains to Knot (ddns)
-        "[/home/][${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-3.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.7"
-      "|pve-1.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::5:1"
-      "|pve-3.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::7:1"
-
-      "||lab.${domain}^$dnsrewrite=${ifs.lan.p6}::12:1"
-      "||lab.${domain}^$dnsrewrite=${ifs.lan.p4}.12"
-
-      # Allowed exceptions
-      "@@||googleads.g.doubleclick.net"
-    ]
-      # Alpina DNS rewrites
-      ++ map (host: "${host}${domain}^$dnsrewrite=${ifs.lan.p6}::11:1") alpinaDomains
-      ++ map (host: "${host}${domain}^$dnsrewrite=${ifs.lan.p4}.11") alpinaDomains;
-  };
-
-  services.knot.enable = true;
-  services.knot.settings = {
-    # server.listen = "0.0.0.0@1053";
-    server.listen = "::1@1053";
-    # TODO: templates
-    zone = [
-      {
-        domain = ldomain;
-        storage = "/var/lib/knot/zones";
-        file = "${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;
@@ -749,7 +62,7 @@ in
     description = "Yura";
     uid = 1000;
     group = "cazzzer";
-    extraGroups = [ "wheel" "docker" "wireshark" ];
+    extraGroups = [ "wheel" "wireshark" ];
   };
 
   programs.firefox.enable = true;
diff --git a/hosts/router/dns.nix b/hosts/router/dns.nix
new file mode 100644
index 0000000..86920be
--- /dev/null
+++ b/hosts/router/dns.nix
@@ -0,0 +1,117 @@
+{ 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 = [
+        "quic://p0.freedns.controld.com"  # Default upstream
+        "[/${ldomain}/][::1]:1053"        # Local domains to Knot (ddns)
+        "[/home/][${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-3.${sysdomain}^$dnsrewrite=${ifs.lan.p4}.7"
+      "|pve-1.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::5:1"
+      "|pve-3.${sysdomain}^$dnsrewrite=${ifs.lan.ulaPrefix}::7:1"
+
+      "||lab.${domain}^$dnsrewrite=${ifs.lan.p6}::12:1"
+      "||lab.${domain}^$dnsrewrite=${ifs.lan.p4}.12"
+
+      # Allowed exceptions
+      "@@||googleads.g.doubleclick.net"
+    ]
+      # Alpina DNS rewrites
+      ++ map (host: "${host}${domain}^$dnsrewrite=${ifs.lan.p6}:1cd5:56ff:feec:c74a") alpinaDomains
+      ++ map (host: "${host}${domain}^$dnsrewrite=${ifs.lan.p4}.11") alpinaDomains;
+  };
+
+  services.knot.enable = true;
+  services.knot.settings = {
+    # server.listen = "0.0.0.0@1053";
+    server.listen = "::1@1053";
+    # TODO: templates
+    zone = [
+      {
+        domain = ldomain;
+        storage = "/var/lib/knot/zones";
+        file = "${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"
+  '';
+}
diff --git a/hosts/router/firewall.nix b/hosts/router/firewall.nix
new file mode 100644
index 0000000..9dcbf90
--- /dev/null
+++ b/hosts/router/firewall.nix
@@ -0,0 +1,165 @@
+{ 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 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 = {
+              tcp . ${ifs.lan.p6}::11:1 . https,
+              tcp . ${ifs.lan.p6}:1cd5:56ff:feec:c74a . https,
+          }
+      }
+
+      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
+      }
+
+      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 $ZONE_WAN_IFS ip6 saddr fd00::/8 masquerade
+      }
+    '';
+  };
+}
diff --git a/hosts/router/ifconfig.nix b/hosts/router/ifconfig.nix
new file mode 100644
index 0000000..132b47e
--- /dev/null
+++ b/hosts/router/ifconfig.nix
@@ -0,0 +1,180 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  links = vars.links;
+  ifs = vars.ifs;
+  pdFromWan = vars.pdFromWan;
+  ulaPrefix = vars.ulaPrefix;
+
+  mkVlanDev = { id, name }: {
+    netdevConfig = {
+      Kind = "vlan";
+      Name = name;
+    };
+    vlanConfig.Id = id;
+  };
+
+  mkLanConfig = ifObj: {
+    matchConfig.Name = ifObj.name;
+    networkConfig = {
+      IPv4Forwarding = true;
+      IPv6SendRA = true;
+      Address = [ ifObj.addr4Sized ifObj.addr6Sized ifObj.ulaAddrSized ];
+    };
+    ipv6Prefixes = [
+      {
+        Prefix = ifObj.net6;
+        Assign = true;
+        # Token = [ "static::1" "eui64" ];
+        Token = [ "static:${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
+      ${pkgs.systemd}/bin/systemctl restart systemd-networkd
+    '';
+    serviceConfig = {
+      Type = "oneshot";
+      User = "root";
+    };
+  };
+}
diff --git a/hosts/router/kea.nix b/hosts/router/kea.nix
new file mode 100644
index 0000000..2932d3a
--- /dev/null
+++ b/hosts/router/kea.nix
@@ -0,0 +1,183 @@
+{ config, lib, pkgs, ... }:
+let
+  vars = import ./vars.nix;
+  ldomain = vars.ldomain;
+  ifs = vars.ifs;
+
+  mkDhcp4Subnet = id: ifObj: {
+    id = id;
+    subnet = ifObj.net4;
+    pools = [ { pool = "${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; } ];
+      }
+    ];
+  };
+}
diff --git a/hosts/router/services.nix b/hosts/router/services.nix
new file mode 100644
index 0000000..804b9ce
--- /dev/null
+++ b/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
+    '';
+  };
+}
diff --git a/hosts/router/vars.nix b/hosts/router/vars.nix
new file mode 100644
index 0000000..10abd5f
--- /dev/null
+++ b/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
+    };
+  };
+}