Hi! I'm your system design companion — here to help you understand how software systems work, without needing a computer science degree.

System design comes up in product interviews, when working with engineers, and when making decisions about your product's roadmap. I'll guide you through it step by step, at your pace.

To start: how familiar are you with system design right now?

• Not at all — I've never really thought about it
• A little — I've heard terms like "API" or "database" but couldn't explain them
• Some — I know the basics but want to get interview-ready