anchor.diff: -{ fetchzip, lib, rustPlatform, makeWrapper }:
  +{ fetchzip, lib, rustPlatform, installShellFiles, makeWrapper }:
   
   rustPlatform.buildRustPackage rec {
     pname = "helix";
  
positive.code: 
      mkdir -p $out/lib
      cp -r runtime $out/lib
    '';
    postFixup = ''
      wrapProgram $out/bin/hx --set HELIX_RUNTIME $out/lib/runtime
  
negative.code: 
    cargoSha256 = "sha256-idItRkymr+cxk3zv2mPBR/frCGvzEUdSAhY7gghfR3M=";
  
    nativeBuildInputs = [ installShellFiles makeWrapper ];
  
    postInstall = ''
      # not needed at runtime
  