anchor.diff:  
   let
     inherit (stdenv.hostPlatform) system;
  -in
  -  stdenv.mkDerivation {
  +  unwrapped = stdenv.mkDerivation {
   
       inherit pname version src sourceRoot;
   
       passthru = {
         inherit executableName tests;
  +      fhs = fhs {};
  +      fhsWithPackages = f: fhs { additionalPkgs = f; };
       };
   
       desktopItem = makeDesktopItem {
  
positive.code: { stdenv, lib, makeDesktopItem
  , unzip, libsecret, libXScrnSaver, libxshmfence, wrapGAppsHook
  , gtk2, atomEnv, at-spi2-atk, autoPatchelfHook
  , systemd, fontconfig, libdbusmenu
  
  # Populate passthru.tests
  , tests
  
negative.code:     '';
  
      inherit meta;
    };
  
    # Vscode and variants allow for users to download and use extensions
    # which often include the usage of pre-built binaries.
    # This has been an on-going painpoint for many users, as
    # a full extension update cycle has to be done through nixpkgs
    # in order to create or update extensions.
    # See: #83288 #91179 #73810 #41189
    #
    # buildFHSUserEnv allows for users to use the existing vscode
    # extension tooling without significant pain.
    fhs = { additionalPkgs ? pkgs: [] }: buildFHSUserEnvBubblewrap {
      # also determines the name of the wrapped command
      name = executableName;
  
      # additional libraries which are commonly needed for extensions
      targetPkgs = pkgs: (with pkgs; [
        # ld-linux-x86-64-linux.so.2 and others
        glibc
  
        # dotnet
        curl
        icu
        libunwind
        libuuid
        openssl
        zlib
  
        # mono
        krb5
      ]) ++ additionalPkgs pkgs;
  
      # restore desktop item icons
      extraInstallCommands = ''
        mkdir -p $out/share/applications
        for item in ${unwrapped}/share/applications/*.desktop; do
          ln -s $item $out/share/applications/
        done
      '';
  
      runScript = "${unwrapped}/bin/${executableName}";
  
      # vscode likes to kill the parent so that the
      # gui application isn't attached to the terminal session
      dieWithParent = false;
  
      passthru = {
        inherit executableName;
        inherit (unwrapped) pname version; # for home-manager module
      };
  
      inherit meta;
    };
  in
    unwrapped
  
  