{ pkgs ? import <nixpkgs> {}, rev ? null }:

with pkgs;

stdenv.mkDerivation {
  name = "bionix-slides";
  src = ./.;
  buildInputs = with pkgs; [ exiftool (callPackage ./tex.nix {}) ];
  buildPhase = ''
    latexmk -xelatex slides
    ${lib.optionalString (rev != null) "exiftool -Producer='${rev}' -Author='Justin Bedő' -Title='BioNix: functional, reproducible bioinformatics workflows' slides.pdf"}
  '';
  installPhase = ''
    mkdir -p $out
    cp slides.pdf $out
  '';
}