Only available on instances willing to pay the hosting costs for an Elasticache cluster.
If someone want full-text search across the entire fediverse, who is going to pay for it? Bluesky has a business model that makes that attractive to them as a value add to pay for. ActivityPub has instances running on RPis in a shoebox. (This is a great thing, it's part of where ActivityPub federation works well.)
Of course, that's also before you get into the sociopolitics that many instances don't want full text search and are concerned about brigading and pulling old microblog posts out of context for nefarious reasons; some of which is why some instances left services like Twitter and have no interest in services like Bluesky.
If someone want full-text search across the entire fediverse, who is going to pay for it? Bluesky has a business model that makes that attractive to them as a value add to pay for. ActivityPub has instances running on RPis in a shoebox. (This is a great thing, it's part of where ActivityPub federation works well.)
Of course, that's also before you get into the sociopolitics that many instances don't want full text search and are concerned about brigading and pulling old microblog posts out of context for nefarious reasons; some of which is why some instances left services like Twitter and have no interest in services like Bluesky.