Considering the potential of the fediverse, is there any version of that for search engines? Something to break up a major point of internet centralization, fragility, and inertia to change (eg Google will never, ever, offer IPFS searches). Not only would decentralization be inherently beneficial, it would mean we’re no longer compelled to hand over private information to centralized unvetted corporations like Google, Microsoft, and DuckDuckGo.
You’re probably looking for YaCy, though it’s more peer-to-peer and mostly predates the trend of federation.