{ config, lib, ... }:

let
  notHydra = config.networking.hostName != "hydra";
  notServer7 = config.networking.hostName != "server7";
  port = toString config.services.nix-serve.port;
in {

  nix = {
    binaryCaches = [ ]
      ++ (lib.optional notHydra "https://nix-serve.hq.c3d2.de")
      ++ (lib.optional notServer7 "http://server7.hq.c3d2.de:${port}");

    binaryCachePublicKeys = [
      "nix-serve.hq.c3d2.de:FEi9GyFkou1Ua8INaEKmuGaww9E5y3XwrNGNRfKYeLo="
      "server7:PxMuG2KvTibHSqOWi+6bY6fbv2ztjzbSEZHVIna/sRA="
    ];
  };

  # Please import only things that are configurable and OFF BY DEFAULT!
  imports = [
    ./yggdrasil-hq.nix
  ];

}