prelöoad experiment

scripts/qr-cert.mjs

@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+/** Print a terminal QR for stdin (or argv[2]) — raw payload only. */
+import qrcode from 'qrcode';
+
+const fromArg = process.argv[2];
+const payload = fromArg
+  ? fromArg
+  : (await new Response(process.stdin).text()).trim();
+
+if (!payload) {
+  console.error('usage: qr-cert.mjs <base64-der>   or pipe payload on stdin');
+  process.exit(1);
+}
+
+const out = await qrcode.toString(payload, {
+  type: 'terminal',
+  errorCorrectionLevel: 'L',
+  small: true,
+});
+process.stdout.write(out);