{ lib, ... }:
{
  /*
    0.0.0.0/0              Default (can be advertised in BGP if desired)
    0.0.0.0/8              Self identification
    0.0.0.0/32             Broadcast
    10.0.0.0/8             Private Networks (RFC 1918)
    127.0.0.0/8            Loopback
    128.0.0.0/16           IANA Reserved (RFC 3330)
    172.16.0.0/12          Private Networks (RFC 1918)
    169.254.0.0/16         Local
    191.255.0.0/16         Reserved (RFC 3330)
    192.0.0.0/24           IANA Reserved (RFC 3330)
    192.0.2.0/24           Test-Net (RFC 3330)
    192.168.0.0/16         Networks (RFC 1918)
    198.18.0.0/15          Network Interconnect Device Benchmark Testing
    223.255.255.0/24       Special Use Networks (RFC 3330)
    224.0.0.0/4            Multicast
    240.0.0.0/4            Class E Reserved


    ::/0                   Default (can be advertised as a route in BGP to peers if desired)
    ::/96                  IPv4-compatible IPv6 address – deprecated by RFC4291
    ::/128                 Unspecified address
    ::1 /128               Local host loopback address
    ::ffff:0.0.0.0 /96     IPv4-mapped addresses
    ::224.0.0.0 /100       Compatible address (IPv4 format)
    ::127.0.0.0 /104       Compatible address (IPv4 format)
    ::0.0.0.0 /104         Compatible address (IPv4 format)
    ::255.0.0.0 /104       Compatible address (IPv4 format)
    0000:: /8              Pool used for unspecified, loopback and embedded IPv4 addresses
    0200:: /7              OSI NSAP-mapped prefix set (RFC4548) – deprecated by RFC4048
    3ffe::/16              Former 6bone, now decommissioned
    2001:db8::/32          Reserved by IANA for special purposes and documentation
    2002:e000:: /20        Invalid 6to4 packets (IPv4 multicast)
    2002:7f00:: /24        Invalid 6to4 packets (IPv4 loopback)
    2002:0000:: /24        Invalid 6to4 packets (IPv4 default)
    2002:ff00:: /24        Invalid 6to4 packets
    2002:0a00:: /24        Invalid 6to4 packets (IPv4 private 10.0.0.0/8 network)
    2002:ac10:: /28        Invalid 6to4 packets (IPv4 private 172.16.0.0/12 network)
    2002:c0a8:: /32        Invalid 6to4 packets (IPv4 private 192.168.0.0/16 network)
    fc00:: /7              Unicast Unique Local Addresses (ULA) – RFC 4193
    fe80:: /10             Link-local Unicast
    fec0:: /10             Site-local Unicast – deprecated by RFC 3879 (replaced by ULA)
    ff00:: /8              Multicast

    https://www.team-cymru.org/Services/Bogons/fullbogons-ipv6.txt
  */
  networking.nftables = {
    preCheckRuleset = ''
      sed -i ruleset.conf \
        -e 's/skuid  *[^ ]*/skuid nobody/g' \
        -e 's/skgid  *[^ ]*/skgid nogroup/g'
    '';
    ruleset = lib.mkBefore (lib.readFile ./nftables.txt);
  };
}