diff --git a/scripts/showcase-xml.mts b/scripts/showcase-xml.mts
new file mode 100644
index 0000000..c8472e3
--- /dev/null
+++ b/scripts/showcase-xml.mts
@@ -0,0 +1,30 @@
+import { InvoiceService } from "@e-invoice-eu/core";
+import { buildEInvoiceData } from "../src/einvoice/buildEInvoiceData.js";
+import { SAMPLE_INVOICE_ORDER } from "../src/invoicePdf.js";
+import type { InvoiceSeller } from "../src/seller.js";
+
+const seller: InvoiceSeller = {
+  sellerName: "einfach produktiv",
+  sellerStreet: "Musterstraße 1",
+  sellerZip: "10115",
+  sellerCity: "Berlin",
+  sellerCountry: "Deutschland",
+  sellerEmail: "hallo@einfach-produktiv.de",
+  vatId: "DE123456789",
+  taxRatePercent: 19,
+  iban: "DE89370400440532013000",
+  bic: "COBADEFFXXX",
+};
+
+const invoiceData = buildEInvoiceData(SAMPLE_INVOICE_ORDER, seller);
+const service = new InvoiceService(console);
+
+async function main() {
+  const xml = await service.generate(invoiceData, { format: "CII", lang: "de" });
+  if (typeof xml !== "string") throw new Error("expected string");
+  const fs = await import("node:fs/promises");
+  await fs.writeFile("/tmp/showcase-invoice.xml", xml);
+  console.log("wrote /tmp/showcase-invoice.xml,", xml.length, "bytes");
+}
+
+main();