Mariam | Codey_sis

Why do some apps let you sign up with Google, but when you want to delete your account, they suddenly ask you for a password? WHICH PASSWORD? 😭

I overheard an argument between a vibe coder and a software engineer. The vibe coder said, “Name one software I can’t build with AI in a day.” The engineer replied, “Instagram or TikTok.” “Easy. Give me 6 hours.” The engineer then asked, “If it’s that easy, why do these companies still employ thousands of engineers to build and maintain their platforms when they can afford all the AI tokens in the world?” The guy went silent. Then the engineer said something interesting: “It’s not just about building it. It’s about how it’s built.” You can vibe code something that looks and works like Instagram in a few hours, but can it handle millions of users, protect their data, scale efficiently, and keep running without falling apart? Software engineering was never just about writing code. It’s about understanding how to design, build, scale, and maintain systems. AI has made writing code easier, not engineering software effortless. Funny how we’ve gone from developers struggling with impostor syndrome to people thinking they can build absolutely anything because they know how to prompt AI.

What’s the difference between a Proxy, a Load Balancer, and an API Gateway? They all sit between users and your backend, forwarding requests. So why do we need three different things that seem to do the same job? Let’s break it down with an app-building scenario. 🧵