Probably, you can quickly help me, because I spent a lot of time with that

I have this default.nix config:

{ stdenv
, pkgs
, lib
}: pkgs.buildGoModule rec {
  name = "neutrond";

  version = "v2.0.0";

  src = (fetchTarball {
    url = "https://github.com/neutron-org/neutron/archive/refs/tags/v2.0.0.tar.gz";
    sha256 = "sha256:04na3ympacdqhk8wbfcq2hk5i2d905ac4fzhgzvf4192nyb0xsin";
  });

  vendorHash = "sha256-uLInKbuL886cfXCyQvIDZJHUC8AK9fR39yNBHDO+Qzc=";
  # vendorHash = lib.fakeSha256;

  doCheck = false;
  

  meta = with lib; {
    description = "Neutron node";

    longDescription = ''
      Neutron node to interact with neutron blockchain
    '';

    homepage = "https://github.com/neutron-org/neutron";
    
    license = licenses.asl20; # Apache license

    maintainers = with maintainers; [
      pr0n00gler
      foxpy
    ];

    platforms = platforms.all;
  };

  nativeBuildInputs = with pkgs; [
    patchelf
    git
    which
    gnumake
  ];


  installPhase = ''
    mkdir -p $out/bin
    go build -mod=readonly -o $out/bin/neutrond ./cmd/neutrond
  '';
}

So, repo https://github.com/neutron-org/neutron/ have a go.mod, which have listed go modules to prefetch. All that stuff we need to build cmd/neutrond dir. But, inside of main.go here we have module that we should fetch again. So, I have troubles with that "post-fetch" during building