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I've been seeing a lot more of these Meta engineering articles on HN - I'm a fan! If you're writing them, keep up the great work!

Agreed. I wonder if the motivation is competing for resources with Meta paying more attention to costs now.

Yes! I had no idea Meta actually invested in innovation/engineering like this. I always assumed most of their work was just in ad tech & "metaverse".

That's why they are promoting themselves so much on HN now - to encourage talent to come to Meta

I mean, they've created a whole bunch of the tech required to support their scale (React, Jest, PyTorch)