Full graph construction for calls and modules with associated sizes

nix/pinned-nixpkgs.nix

+builtins.fetchTarball {
+  name = "nixos-nixpkgs-23.11";
+  url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/23.11.tar.gz";
+  sha256 = "1ndiv385w1qyb3b18vw13991fzb9wg4cl21wglk89grsfsnra41k";
+}