Move build commands to a config file, and use LuaLaTeX

build_slides.sh

@@ -10,7 +10,7 @@ popd
 
 # compile the slides
 pushd slides
-latexmk -pdf *.tex
+latexmk *.tex
 popd
 
 # Move things to the right place

slides/latexmkrc

+$pdf_mode = 1;
+$pdflatex = 'lualatex %O %S';
+
+$silent = 1;