diff --git a/.gitignore b/.gitignore
index bfde53be..f38b4a97 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,7 @@ coverage
 test-results/
 playwright-report/
 e2e/.auth/
+
+# Local Supabase scaffold (supabase init output) — the local stack is a test
+# harness only; CI scaffolds its own fresh copy on every run
+backend/supabase/