nixos/system/services/znc.nix

{ ... }:
{
  services.znc = {
    enable = true;
    mutable = false;
    useLegacyConfig = false;
    openFirewall = true;
    config = {
      LoadModule = [ "adminlog" ];
      Listener.l = {
        Port = 6697;
      };
      User.pixelifytica = {
        Admin = true;
        Pass.password = {
          Method = "sha256";
          Hash = "9a7b4015ad167675613a26426942ede48a8f6a771d2ca546cf72a328abdea7e0";
          Salt = "0vgs)x4KcEmGMK;56QVm";
        };
        Network = {
          liberachat = {
            Server = "irc.libera.chat +6697";
            Nick = "pixelifytica";
            Chan = { };
            JoinDelay = 2;
          };
        };
      };
    };
  };
}