diff --git a/deploy/runtime/launcher/hwlab-go-env-reuse-launcher.mjs b/deploy/runtime/launcher/hwlab-go-env-reuse-launcher.mjs
index eff98d9e..10c7cf56 100644
--- a/deploy/runtime/launcher/hwlab-go-env-reuse-launcher.mjs
+++ b/deploy/runtime/launcher/hwlab-go-env-reuse-launcher.mjs
@@ -17,6 +17,7 @@ if (!/^[A-Za-z0-9._/-]+$/u.test(bootRef) || bootRef.startsWith("-") || bootRef.i
 const readUrl = process.env.HWLAB_BOOT_READ_URL || mirrorReadUrl(bootRepo);
 mkdirSync(path.dirname(checkoutDir), { recursive: true });
 rmSync(checkoutDir, { recursive: true, force: true });
+// Go env images intentionally avoid npm dependency installation; Go modules are prepared by Docker/BuildKit layers.
 run("git", ["clone", "--no-checkout", "--single-branch", "--branch", bootRef, readUrl, checkoutDir], "/");
 run("git", ["checkout", "--detach", bootCommit], checkoutDir);