to flip that so it’s clear… if atproto is successful, when the protocol is production ready, someone will build a megaclient that might let you follow on both, or someone might add to the protocol bridges between, but bluesky is to demo atproto, maybe they will go back at some point and add nostr to compete with other clients but success for at proto is really that bluesky goes the way of branle not that they have to do that heavy lifting themselves.