anchor.diff:      "test_borgmatic_version_matches_news_version"
     ];
   
  +  nativeBuildInputs = [ installShellFiles ];
  +
     propagatedBuildInputs = with python3Packages; [
       borgbackup
       colorama
  
positive.code: { borgbackup, coreutils, lib, python3Packages, systemd }:
  
  python3Packages.buildPythonApplication rec {
    pname = "borgmatic";
  
negative.code:   ];
  
    postInstall = ''
      installShellCompletion --cmd borgmatic \
        --bash <($out/bin/borgmatic --bash-completion)
  
      mkdir -p $out/lib/systemd/system
      cp sample/systemd/borgmatic.timer $out/lib/systemd/system/
      substitute sample/systemd/borgmatic.service \
  