Readiness Probe Dependencies: Lessons From Inngest’s Outages
Readiness probe dependencies turned one dead auxiliary topic into a full Inngest outage. Learn which dependencies should block startup and which should not
Category System Design
Instance Capacity Fallback: A Tested Design for Shortages
Instance capacity fallback explained with two October 2026 postmortems and AWS guidance, plus a tested Python launcher you can adapt for your own stack.
Semantic Caching for LLMs: Architecture, Thresholds, Risks
Semantic caching for LLMs explained: gateway architecture, safe similarity thresholds, tenant scoping and a tested Node.js cache, with published hit rates.
Retry Storm Prevention: Backoff, Jitter and Retry Budgets
Retry storm prevention with capped attempts, full jitter and retry budgets, drawn from GitHub's August 2026 outage and Uber, with tested Node.js code.
Go encoding/json/v2: What Changed and Interview Questions
Go encoding/json/v2 is stable in Go 1.27. See what changed from v1, how to migrate safely, and the interview questions this update prepares you for.
Cache Stampede Prevention: Locks, XFetch, SWR in PHP & Node
Cache stampede prevention with Redis locks, XFetch and stale-while-revalidate, plus the cold-key gaps in Laravel flexible(), Symfony Cache and Next.js.
Hot Wallet Security Architecture: 5 Lessons From Binance
Hot wallet security architecture lessons from the $6.3B Binance hack: balance caps, signer policy, and laptop controls every backend team should copy.
Transactional Outbox Pattern in PHP: Stop Losing Events
Transactional outbox pattern in PHP and MySQL: fix lost events with an outbox table, a SKIP LOCKED relay, and clear CDC trade-offs. Code included.
Rate Limiter System Design: Token Bucket vs Sliding Window
Design a distributed rate limiter with Redis and atomic Lua scripts. Compare token bucket vs sliding window algorithms with real benchmarks and PHP code.
Modular Monolith Architecture: The Complete 2026 PHP Guide
What a modular monolith is, why 42% of microservices teams reversed course in 2026, and how to enforce boundaries in Laravel or Symfony with Deptrac.