anchor.diff: -{ lib, stdenv
  +{ stdenv
  +, lib
   , fetchFromGitHub
  -, fetchpatch
   , meson
   , ninja
   , pkg-config
  
positive.code:     owner = "flatpak";
      repo = pname;
      rev = version;
      sha256 = "1s3g17zbbmq3m5jfs62fl94p4irln9hfhpybj7jb05z0p1939rk3";
    };
  
    patches = [
      # Fix build and .pc file
      # https://github.com/flatpak/libportal/pull/20
      (fetchpatch {
        url = "https://github.com/flatpak/libportal/commit/7828be4ec8f05f8de7b129a1e35b5039d8baaee3.patch";
        sha256 = "04nadcxx69mbnzljwjrzm88cgapn14x3mghpkhr8b9yrjn7yj86h";
      })
      (fetchpatch {
        url = "https://github.com/flatpak/libportal/commit/bf5de2f6fefec65f701b4ec8712b48b29a33fb71.patch";
        sha256 = "1v0b09diq49c01j5gg2bpvn5f5gfw1a5nm1l8grc4qg4z9jck1z8";
      })
    ];
  
    nativeBuildInputs = [
      meson
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "libportal";
    version = "0.4";
  
    outputs = [ "out" "dev" "devdoc" ];
  
  