This is a payments widget .. you can add five lines of code on any html page of a legacy website .. it allows visitors to pay in sats even without nostr .. basically a lightning widget that routes sats to your lnurl like getalby ..

Take a look at https://gita.shutri.com for a real life use case .. scroll down on any page to find this widget ..

This widget along with nostri.chat brings the flavours of nostr and lightning to legacy web ..which is cool cuz it kinda helps to orangepill:-)