Can these be built out to be private relays in that they don't rebroadcast events to other relays? As in, for closed and access restricted community applications?

nostr:note1l56x5xsg64lfaqe978hmel8ypcmkvmd8ry4y0ewaf82shvz2zn4qmt5e8w

Thank you! It was my first time playing, just getting started with Nostr