--- a/cws/build.sc	Fri Sep 15 10:49:33 2023 +0100
+++ b/cws/build.sc	Sun Sep 17 19:12:57 2023 +0100
@@ -1,10 +1,10 @@
 #!/usr/bin/env amm
 
 val files = Seq("cw01.tex",
-	         "cw02.tex",
-	         "cw03.tex",
-	         "cw04.tex",
-	         "cw05.tex")
+	        "cw02.tex",
+	        "cw03.tex",
+	        "cw04.tex",
+	        "cw05.tex")
 
 val pdf_files = files.map(s => s.stripSuffix("tex") ++ "pdf")
 
@@ -13,8 +13,8 @@
 def make() = {
   for (f <- files) {
     println(s"Processing $f ...")
-    os.proc("xelatex", f).call(stdout = os.Inherit, stdin = os.Inherit)
-    os.proc("xelatex", f).call(stdout = os.Inherit, stdin = os.Inherit)
+    os.proc("lualatex", f).call(stdout = os.Inherit, stdin = os.Inherit)
+    os.proc("lualatex", f).call(stdout = os.Inherit, stdin = os.Inherit)
   }
 }