Impressive!
I'm genuinely curious: Where do you host the index and the DB, and how do you finance it? Hosting an index of that size on AWS is not cheap, and maintaining the server infrastructure yourself seems quite some effort.
It's literally hosted off a beefy PC in my living room. I could definitely not afford to host this on AWS or rented servers.
About ~5k USD total investment including a small UPS, operational costs are $40/mo. Doesn't actually require all that much maintenance, at least not compared to the work I've put into building a search engine (including crawler, index) from scratch.
