diff --git a/.forgejo/workflows/demo.yaml b/.forgejo/workflows/demo.yaml
index 0fd014f..6bb9341 100644
--- a/.forgejo/workflows/demo.yaml
+++ b/.forgejo/workflows/demo.yaml
@@ -6,8 +6,8 @@ jobs:
   test:
     runs-on: host
     steps:
+      - run: git clone --depth=1 https://$FORGEJO_TOKEN@forge.cbaines.net/cbaines/guile-knots.git knots-trunk
+      - run: git clone --depth=1 https://$FORGEJO_TOKEN@forge.cbaines.net/cbaines/guile-knots.git --branch=pages knots-pages
       - run: |
-          git clone --depth=1 https://$FORGEJO_TOKEN@forge.cbaines.net/cbaines/guile-knots.git knots-trunk
-          git clone --depth=1 https://$FORGEJO_TOKEN@forge.cbaines.net/cbaines/guile-knots.git --branch=pages knots-pages
           cd knots-trunk
-          guix shell guile-documenta -- documenta api knots
+          guix shell -f guix-dev.scm -- documenta api knots
diff --git a/guix-dev.scm b/guix-dev.scm
index f9faef3..62b170c 100644
--- a/guix-dev.scm
+++ b/guix-dev.scm
@@ -43,7 +43,8 @@
   (native-inputs
    (list autoconf
          automake
-         pkg-config))
+         pkg-config
+         guile-documenta))
   (synopsis "TODO")
   (description "TODO")
   (home-page "TODO")