Not sure if this helps, but I also use the lnurlpay service by nostr:npub1h6lqdncj305mypl2ujynfp5nwaffn3gr97a30ncjmwhl3rz3njpqumgty4 with my nostr:npub1hcwcj72tlyk7thtyc8nq763vwrq5p2avnyeyrrlwxrzuvdl7j3usj4h9rq lightning address:

🔗 https://lnurlpay.com/marcelo@walletofsatoshi.com

To create a dynamic invoice.

As an example, you can set a 1,000 sats invoice directly in the url

👉 https://lnurlpay.com/marcelo@walletofsatoshi.com/1000?comment=Test

And also add an invoice description in the comment.