Awesome :) No public index as far as I know. Here is a cool site from @FLX http://npub1hn7pf54uh5nhysqsqmd36rvjlw0cd40xze2dy5yy4vzmhqt0262szdmhc5.fips/

Browsing FIPS sites from a fucking Chrome. This is magic.

It's magic and I love it. It's still very young but there are more services running over @npub1y0gj...00ly every day. It's more of a test nostr relay right now but you can add your favorite nostr client app to mesh apps in fips2go and use this relay over FIPS. It just works: http://npub1lx2m36mtzpvae7caw6tphqzhuyufg82y63p8lvd8n6nvkdkw0thq08hdpz.fips/