nostr:npub1a3um269aaf3u5cy37kuykrrrnsg2pyv7za06pxjduv25lq5sdujs2qmdj6 I need help getting on Plebeian Market. Stuck at adding an xPub. I use Zaprite for invoices and Alby on Nostr. I also have Sparrow on my Node and an Aqua wallet. How can i generate an xPub? Should it be dynamic and different for each listing?