Any interested in making this a federated search?

I've been toying with the idea of a web-ring style search engine where it uses the fediverse's post and sub system so that you can subscribe to "indexers" that are made by other users (or even mastodon users themselves) so that you can have highly targeted search engine systems. So, for example, you could make multiple search "scopes" and each of those scopes would follow specific other "sources" and search from them. Likewise, users could provide links and descriptions to add new entries to each scope which would, in essense, work like a fediverse post and then be distributed to all other interested parties.

I haven't done a lick of implementation yet, but thought I'd share the idea here as I consider doing this more and more every day. The only thing I haven't figured out yet is images, because ideally that would be a special type of scope view.