Meta Engineering Blog
Posts on storage, caching, data centres and the infrastructure behind products used by billions of people. Uneven, and the good ones are very good, particularly anything about how a system was migrated while staying online.
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Where this fits
Best used as case study material once you know the vocabulary. Read a post, then try to redraw the architecture from memory. That gap is what you still need to learn.
Design Gurus covers the underlying patterns in a structured order if the redraw keeps failing.
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