Would either Calckey or Misskey be a good fit for what you’re looking for?

You can follow this issue for the same feature request.

In the same issue, there’s a reference to a potential workaround. I haven’t tried it, but from skimming the post, it seems to require less effort while not being fully automatic.

It seems like you’re the first one here to search and subscribe to it. When I searched for it, it came up immediately. At this point, it could be a caching issue, but it’s hard to say when I’m not seeing the same issue.

Looking forward to the next season!