all you have to do is

1. host your own PDS, where your account lives, this is easy, I do it myself already.

2. 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.

3. 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