anchor.diff:      export SEARX_DEBUG="true";
     '';
   
  -  propagatedBuildInputs = with python3Packages; [
  +  propagatedBuildInputs = with python3.pkgs; [
       babel
       certifi
       python-dateutil
  
positive.code:     jinja2
      langdetect
      lxml
      h2
      pygments
      pyyaml
      redis
  
negative.code: { lib
  , python3
  , fetchFromGitHub
  }:
  
  python3.pkgs.buildPythonApplication rec {
    pname = "searxng";
    version = "unstable-2022-07-15";
  
    src = fetchFromGitHub {
      owner = pname;
      repo = pname;
      rev = "7bf4e8d12d1d0ee53bf71f7c3a4010ef936f25d9";
      sha256 = "sha256-Fuv9AoV9WnI6qMgj4Ve016RF8gaLXYgw89jRROcm/A8=";
    };
  
    postPatch = ''
  