anchor.diff:  
     nativeBuildInputs = [
       intltool
  +    # meson
  +    # ninja
     ];
   
     buildInputs = [
  
positive.code:     libproxy
      p11-kit
    ];
  
    configureFlags = [
      "--disable-maintainer-mode"
  
negative.code: 
  let
    inherit (lib)
      boolWt
      boolTf;
  
    sources = {
      "2.54" = {
        version = "2.54.1";
        sha256 = "eaa787b653015a0de31c928e9a17eb57b4ce23c8cf6f277afaec0d685335012f";
      };
    };
  
  