I'd be surprised if that isn't their eventual goal, but I don't think it's really possible to deliver the kind of general-purpose engine they want with a team o

I'd be surprised if that isn't their eventual goal, but I don't think it's really possible to deliver the kind of general-purpose engine they want with a team of ~5-10. Hopefully if they're successful and grow they can expand their own indexes. You can try them at https://www.teclis.com/ https://www.teclis.com/ and https://tinygem.org/ https://tinygem.org/.