The Shoutout plugin for nostr:npub155m2k8ml8sqn8w4dhh689vdv0t2twa8dgvkpnzfggxf4wfughjsq2cdcvg now also supports receiving shoutouts via Lightning Address and the LNURL comment option.

https://github.com/dennisreimann/btcpayserver-plugin-shoutout/releases/tag/v1.1.0