anchor.diff:  { config, lib, pkgs, ... }: let
     cfg = config.defnixos;
   
  -  defnix = import ../../.;
  +  defnix = import ../../. { config.target-system = pkgs.system; };
   
     inherit (lib) types mkOption mapAttrsToList;
  -
  -  composed = defnix.compose {
  -    all.build-support.system = pkgs.system;
  -  };
   
     strongswan-service = cfg.strongswan-service { inherit (cfg) ca; outgoing-hosts = cfg.secure-upstreams; };
   
  
positive.code:     defnixos.services-to-nixos-config = mkOption {
        description = "An already-composed services-to-nixos-config defnixos library function";
  
        default = composed.defnixos.lib.services-to-nixos-config;
  
        type = types.uniq types.unspecified;
      };
  
negative.code:     defnixos.strongswan-service = mkOption {
        description = "An already-composed strongswan defnixos service function";
  
        default = defnix.defnixos.services.strongswan;
  
        type = types.uniq types.unspecified;
      };
  