anchor.diff:        To be able to use it, make sure you have access to /dev/hidraw* files.
       '';
       license = licenses.gpl2;
  -    homepage = https://pwr.github.io/Solaar/;
  +    homepage = https://pwr-solaar.github.io/Solaar/;
       platforms = platforms.linux;
       maintainers = with maintainers; [ spinus ysndr ];
     };
  
positive.code: { fetchFromGitHub, lib, gobject-introspection, gtk3, python3Packages }:
  
  # Although we copy in the udev rules here, you probably just want to use logitech-udev-rules instead of
  # adding this to services.udev.packages on NixOS
  
  python3Packages.buildPythonApplication {
    pname = "solaar-unstable";
    version = "2019-01-30";
  
    src = fetchFromGitHub {
      owner = "pwr";
      repo = "Solaar";
      rev = "c07c115ee379e82db84283aaa29dc53df033a8c8";
      sha256 = "0xg181xcwzzs8pdqvjrkjyaaga7ir93hzjvd17j9g3ns8xfj2mvr";
    };
  
    propagatedBuildInputs = with python3Packages; [ gobject-introspection gtk3 pygobject3 pyudev ];
  
negative.code:   '';
  
    enableParallelBuilding = true;
    meta = with lib; {
      description = "Linux devices manager for the Logitech Unifying Receiver";
      longDescription = ''
  