diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..a4dd9db
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.7.4
diff --git a/bin/record_expected_output b/bin/record_expected_output
new file mode 100755
index 0000000..a0dc711
--- /dev/null
+++ b/bin/record_expected_output
@@ -0,0 +1,10 @@
+#! /usr/bin/env sh
+
+export JEKYLL_ENV=production
+export PAGES_REPO_NWO=actions/jekyll-build-pages
+export JEKYLL_BUILD_REVISION=JEKYLL_BUILD_REVISION
+
+for dir in $(ls test_projects)
+do
+	bundle exec github-pages build --verbose -s test_projects/$dir -d test_projects/$dir/_expected
+done