Strange one this. I think I learned about it from Warren Ellis, via his newsletter (which is well worth reading, by the way).
A woman takes a programming job in San Francisco. Chance leads her to gain possession of a sourdough starter culture with unusual properties. She learns to bake bread, and some other things happen.
It was OK. Quite fun. And if we’re comparing novels set in San Francisco tech culture, it was better than, say, Transmission, by Hari Kunzru which I’ve read and didn’t enjoy, but didn’t blog about; much, much, much better than The Circle; but probably not as good as All the Birds in Sky.