all you have to do is
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host your own PDS, where your account lives, this is easy, I do it myself already.
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host you own appview: the only actually good appview is bsky’s, luckily it’s open source, unfortunately I do not believe they made it easy to self-host.
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Host a relay, this isn’t all that hard, it just needs a real big server (AFAIK it needs a shitton of io throughput), so unless you’re very rich it’s not too realistic to host this.
So yeah, a PDS is easy to host but the other two parts are a pain, and since the protocol has only been open for a few months, people haven’t really done too much.
Frontpage exists, but they haven’t made it be able to interact with bsky.Social, although the accounts are shared. I have been told by people involved with that that that’s an issue with frontpage’s implementation, and not the AT protocol
according to Cory doctorow (pluralistic), trumps gouvernement will likely selectively enforce antitrust, so the Google case would go through, but cases against, say, tesla would be dropped.