If you don't really need it today, wait for Mastodon 4.2 to be released.
https://mastodon.social/@MastodonEngineering/111018605826432135
If you can't wait, and you are technically oriented, get the latest beta.
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@vruz @SecurityWriter That won't help now, though, because it requires accounts to opt-in first before they're searchable.
@LouisIngenthron @SecurityWriter
I don't know, @SecurityWriter didn't say whether that was what they wanted. Thanks for your intervention.