Just try? Theoretically supported but haven't tried.
nostr:npub1y24gz5gwucl79vtv4ctwpysl0r5m4xyzu2rgulnr44ks3t5mt92q4nz2ad since you're always here, have you tried using nwc generated by alby hub connections as the custom node in btcpay server? Any success with that lately?
Discussion
It worked before. Something changed but a fix is coming
nostr:note12p7af6wscavkl9vep0kgpjma5d7yrevcj9nefast9j0wxps0z6usa6wj2n