I mean it does not seem like there's a bunch of personal data servers or web app instances people choose from, like there's in Mastodon (I know it's not the sam

I mean it does not seem like there's a bunch of personal data servers or web app instances people choose from, like there's in Mastodon (I know it's not the same technically). Therefore, it looks like Bluesky is much more centralized than Mastodon. I wonder if that's because it's technically harder to run your own software for Bluesky or what?