{
  mdbook,
  stdenv,
  ...
}:
stdenv.mkDerivation {
  name = "haze-book";
  src = ../book;

  nativeBuildInputs = [mdbook];

  buildPhase = ''
    mdbook build
  '';

  installPhase = ''
    mkdir -p $out
    cp -r book/* $out/
  '';
}