How the pieces fit when one machine stops being enough — the trade-offs behind sharding, queueing, caching and failing over, and the interview questions built on them.
How this category fits together, bottom to top. Every green block is covered by a published issue — click it to go straight there.
No issue covers this category so far. Queue the topics you want and you'll get an email the day one lands — that queue is also how the running order gets decided.
The other categories sitting alongside this one.