NixOS kexec leona

sed -i "s/DNS=.*/DNS=2a01:4f9:c010:3f02::1/g" /etc/systemd/resolved.conf.d/hetzner.conf
systemctl restart systemd-resolved
# The installer needs sudo
apt install -y sudo

# Let root run the nix installer
mkdir -p /etc/nix
echo "build-users-group =" > /etc/nix/nix.conf

# Install Nix in single-user mode
curl -L https://nixos.org/nix/install | sh
. $HOME/.nix-profile/etc/profile.d/nix.sh

nix-env -f https://github.com/nix-community/nixos-generators/archive/master.tar.gz -i -v

cat <<EOF > /root/config.nix
{
  security.sudo.wheelNeedsPassword = false;
  services.openssh.enable = true;
  nix.trustedUsers = [ "root" "@wheel" "leona" ];
  networking.hostName = "iso";
  users.users.root.openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILN9nTU+lsrfp+uLo1IvMEIi64m6ke0FmfZ6FxBgmKXp leona@leona.is"
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOkvy9P1Qweq1kykgn3IWIBWe/v/dTNAx+hd9i2aKe1O openpgp:0xCACA6CB6"
      "ssh-rsa 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 openpgp:0xF5B75815"
  ];
  networking.useNetworkd = true;
  networking.useDHCP = false;
  systemd.network = {
    links."10-eth0" = {
      matchConfig.MACAddress = "a8:a1:59:8b:34:ee";
      linkConfig.Name = "eth0";
    };
    networks."10-eth0" = {
      DHCP = "yes";
      address = [ "2a01:4f9:6a:13c6::1/64" ];
      routes = [
        {
          routeConfig = {
            Destination = "::/0";
            Gateway = "fe80::1";
            GatewayOnLink = true;
          };
        }
      ];
      dns = [ "2a01:4f9:c010:3f02::1" ];
      matchConfig = {
        Name = "eth0";
      };
    };
  };
}
EOF

nixos-generate -o /root/result  -f kexec-bundle -c /root/config.nix