Honestly I think proper search is one of the biggest things holding the fediverse back from mainstream adoption. It needs exposure, and it needs to be easy to find information and communities around obscure topics in order to really replace silos like reddit and facebook. I'm glad to see this exists, and I particularly like that it supports kagi.
Edit: Maybe this should have been obvious when seeing that it uses other search providers as a backend, but all it does is pass a list of fedi websites to filter results for. That's... not a proper search. It's a potentially useful tool, but it's not doing any of its own aggregation and more importantly the list of websites is also painfully small. Color me disappointed.