diff --git a/description.md b/description.md
new file mode 100644
index 0000000..2bb38a3
--- /dev/null
+++ b/description.md
@@ -0,0 +1,3 @@
+Connect a Bleskomat ATM to an lnbits wallet.
+
+Since the Bleskomat ATMs are designed to be offline, a cryptographic signing scheme is used to verify that the URL was generated by an authorized device. When one of your customers inserts fiat money into the device, a signed URL (lnurl-withdraw) is created and displayed as a QR code.