diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..525f23d
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,3 @@
+# A code owner must approve every PR to main. Branch protection is set in
+# mirurobotics/infra: github/terraform/repos.tf.
+* @ben-miru