Paths
Paths
Curriculum
Curriculum mode is secondary by design. Use it when you want the archive grouped by layer and theme rather than by curated entry point.
Recurring patterns and components that shape real backend services once reliability and correctness matter.
Caching
Freshness, invalidation, and the operational cost of making reads feel fast.
Data Patterns
Idempotency, boundaries, and the shape of correctness when workflows get messy.
Judgment for ambiguous production choices: what breaks first, when to migrate, what not to split, and why.
Tradeoffs
Where architecture decisions stop being tidy and start becoming irreversible.