anchor.diff:                enable = true;
                 support32Bit = true;
                 inherit systemWide;
  +            } // lib.optionalAttrs fullVersion {
  +              package = pkgs.pulseaudioFull;
               };
   
               environment.systemPackages = [ testers.testPlay pkgs.pavucontrol ]
  
positive.code:         '';
        });
  in builtins.mapAttrs (key: val: mkTest val) {
    user = { systemWide = false; };
    system = { systemWide = true; };
  }
  
negative.code: let
    mkTest = { systemWide ? false , fullVersion ? false }:
      import ./make-test-python.nix ({ pkgs, lib, ... }:
        let
          testFile = pkgs.fetchurl {
  