Okay, sorry for the several day delay.

1. Go to your BTCPayserver instance.

2. To to "Manage Plugins" on the left hand side

3. Enable "LNDhub API"

4. Got to the "LNDhub API" plugin after it is installed (should be on the left hand side.

5. Click on "Show credentials"

6. Past the LNDhub "Access URL" into Alby Hub Extension's LNDhub option

7. Now your Lightning Node in BTCPayserver is connected to the your NOSTR account to zap.