https://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf
Recently had reason to briefly explain how Google Spanner works when I was discussing Amazon Aurora Limitless. I have no idea if Limitless implements the same tech as Spanner, but my guess is it's not entirely unreasonable. Again, I'm not talking about Limitless, I really don't know how it works. But someone was explaining it to me and it just sounded like Spanner.
https://cloud.google.com/transform/ultimate-insider-threat-north-korean-it-workers
Worth knowing if you're in the market for a job or hiring. The flip side of these scammers trying to get hired to infect your company with malware is running interviews for devs and having a technical interview involving running malware on your machine. They'll say it's something like a web API server you'll build a frontend against or something like that. They're hoping you use your employer's laptop to do it and either have a bunch of credentials on your machine, or if they're really fancy, they'll wait in the background and see what they can do over the next couple days. Even if it's just your personal laptop, expect to get extorted.
Stay vigilant out there.