anchor.diff:    # };
   
     # using entrypoint from: https://github.com/input-output-hk/cardano-world/blob/master/nix/cardano/entrypoints.nix
  -  # example invocation:
  -  # podman run -d
  -  #   -v data:/data
  -  #   -e DATA_DIR=/data
  -  #   -e ENVIRONMENT=testnet
  -  #   -e SOCKET_PATH=/data/node.socket
  -  #   -e USE_SNAPSHOT=1
  -  #   inputoutput/1.35.3-new
     virtualisation.oci-containers.containers.cardano-node = {
       image = "inputoutput/cardano-node:1.35.3-new";
       volumes = [
  
positive.code:       USE_SNAPSHOT = "1";
      };
    };
  }
  
negative.code: 
  { config, pkgs, lib, ... }:
  
  let
    cardano-node = import
      (pkgs.fetchgit {
        url = "https://github.com/input-output-hk/cardano-node";
        rev = "1.35.3";
        sha256 = "020fwimsm24yblr1fmnwx240wj8r3x715p89cpjgnnd8axwf32p0";
      })
      { };
  in {
    # services.nginx.virtualHosts."hydraw.fk.ncoding.at" = {
    #   forceSSL = true;
    #   enableACME = true;
  