{ pkgs, lib, config, ... }:
with lib;
let cfg = config.deployment.keyys;
in {
  options.deployment.keyys = mkOption {
    type = types.listOf types.path;
    default = [ ];
  };
  options.deployment.keys-copy = mkOption { type = types.package; };
  config = {
    deployment.keys-copy = pkgs.writeShellScriptBin "copy-keys"
      (if cfg != [ ] then ''
        set -e
        ssh root@$1 "mkdir -p /root/keys"
        scp ${concatMapStringsSep " " toString cfg} root@$1:/root/keys
        echo "uploaded keys"
      '' else ''
        echo "no keys to upload"
      '');

  };

}