what about just a page instead of a group on Facecrap. pin at the top that it's info only directing to your nostr npub. then just put a link in every post there to nostr. after a few posts annonce that you're nostr only and those so inclined ate encouraged to find you there. I would do the same thing on TwiX and the other socials. create funnels everywhere to you. your website & your npub.