diff --git a/Justfile b/Justfile
index b85f431..d15d952 100644
--- a/Justfile
+++ b/Justfile
@@ -1,5 +1,5 @@
 default:
-    guix time-machine --channels=./channels.scm.lock -- shell --container --emulate-fhs --manifest=./manifest.scm -- sh -c "mkdir -p ./out && pdflatex -output-directory=./out ./src/document.tex"
+    guix time-machine --channels=./channels.scm.lock -- shell --container --emulate-fhs --manifest=./manifest.scm -- sh -c "mkdir -p ./out && lualatex -output-directory=./out ./src/document.tex"
 
 dev:
     guix time-machine --channels=./channels.scm.lock -- shell --manifest=./manifest.scm
diff --git a/channels.scm.lock b/channels.scm.lock
new file mode 100644
index 0000000..fe48e8e
--- /dev/null
+++ b/channels.scm.lock
@@ -0,0 +1,11 @@
+(list (channel
+        (name 'guix)
+        (url "https://git.savannah.gnu.org/git/guix.git")
+        (branch "master")
+        (commit
+          "10e99250f49d40563619c849b0d4ada31f985991")
+        (introduction
+          (make-channel-introduction
+            "9edb3f66fd807b096b48283debdcddccfea34bad"
+            (openpgp-fingerprint
+              "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))))
diff --git a/manifest.scm b/manifest.scm
index 7827cf4..67454b3 100644
--- a/manifest.scm
+++ b/manifest.scm
@@ -2,4 +2,4 @@
 (use-modules (template-package)
 	     (gnu packages tex))
 
-(packages->manifest (list texlive-scheme-basic texlive-cm-super texlive-hyperref texlive-pgf texlive-geometry coreutils))
+(packages->manifest (list texlive-scheme-basic texlive-cm-super texlive-hyperref texlive-etoolbox texlive-pgf texlive-geometry coreutils))