system design isn’t a checklist of architectures to “unlock” as your app grows. it’s the art of matching what’s necessary right now with what will actually move the needle. i’ve seen more SaaS projects struggle from overengineering than from scaling failures. don’t reach for

which one do you HATE the most?

there’s a pattern I’ve seen play out over and over in early-stage startups: someone reads about Netflix’s cutting-edge tech stack, then spends weeks bolting on Elasticsearch, custom queues, or CQRS before anyone’s even signed up. you bake in complexity, costs, and learning

have a great weekend

still the best code analysis tool out there