anchor.diff: -let generateNodeConf = { lib, pkgs, config, privkpath, pubk, peerId, nodeId, ...}: {
  +let generateNodeConf = { lib, pkgs, config, privk, pubk, peerId, nodeId, ...}: {
         imports = [ common/user-account.nix ];
         systemd.services.systemd-networkd.environment.SYSTEMD_LOG_LEVEL = "debug";
         networking.useNetworkd = true;
  
positive.code:       virtualisation.vlans = [ 1 ];
        environment.systemPackages = with pkgs; [ wireguard-tools ];
        boot.extraModulePackages = [ config.boot.kernelPackages.wireguard ];
        systemd.network = {
          enable = true;
          netdevs = {
            "90-wg0" = {
              netdevConfig = { Kind = "wireguard"; Name = "wg0"; };
              wireguardConfig = {
                PrivateKeyFile = privkpath ;
                ListenPort = 51820;
                FwMark = 42;
              };
  
negative.code: 
      node2 = { pkgs, ... }@attrs:
      let localConf = {
          privk = "eHxSI2jwX/P4AOI0r8YppPw0+4NZnjOxfbS5mt06K2k=";
          pubk = "27s0OvaBBdHoJYkH9osZpjpgSOVNw+RaKfboT/Sfq0g=";
          nodeId = "2";
          peerId = "1";
  