Not the debug output I was going for
lib.evalModules: add graph attribute by mightyiam · Pull Request #403839 · NixOS/nixpkgs

For various module evaluation design/refactor analysis purposes one may want to obtain a data structure that represents all the modules that took part of a configuration evaluation. This PR adds an...

GitHub
@roberth only just saw this; this was from a hacky webpack plugin, nothing to do with Nix :D