It’s easy to setup. If you have to sync a bitcoin/LN node from scratch it would take a few days, but relatively straight forward in terms of configuration.

If you are like me and have a Btcpayserver with LN node running already, all it took was:

- updating my btcpay to v1.9.0

- installing nostr plugin

- entering data in 3 fields (name, pub, priv key)

- updating my profile’s NIP05 to match my btcpay’s lightning address.

Took less than 5 minutes.