System Design Primer
donnemartin/system-design-primer
The classic open primer for learning system design interviews and real architecture basics. GitHub: donnemartin/system-design-primer (~363k stars).
GitHub repository
Overview
System Design Primer is the open-source project at donnemartin/system-design-primer on GitHub (https://github.com/donnemartin/system-design-primer). The classic open primer for learning system design interviews and real architecture basics. Category on LimeDock: development. Approximate community size: ~363k GitHub stars. Repo (copy/paste): https://github.com/donnemartin/system-design-primer This LimeDock Directories page explains what it is and how teams use it in plain English — so searches for the GitHub project can land on a practical guide.
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Link
Installation guide
Open the GitHub repository, then follow the README for your stack.
Official GitHub repository: https://github.com/donnemartin/system-design-primer GitHub path: donnemartin/system-design-primer
How to open it: 1. Copy this URL: https://github.com/donnemartin/system-design-primer 2. Clone or follow the README install for your OS / stack. 3. Start with the smallest example in their docs before production use.
How to use it
**Simple example** You’re designing a feature that needs scale thinking, not just CRUD.
1. Read the primer sections relevant to your problem. 2. Sketch your design. 3. Review with a senior against the primer checklists.
Example prompts
- “Using the system-design-primer, outline a design for our notifications system.”
- “What primer topics matter for a multi-tenant SaaS?”
- “Quiz me on caching tradeoffs.”
Use cases and examples
- Evaluate donnemartin/system-design-primer for your stack
- Onboard a teammate to System Design Primer with a shared checklist
- Compare System Design Primer against tools you already pay for
- Capture lessons in your internal wiki after a pilot
Prerequisites
- Basic backend literacy
Tips
- Primer knowledge ≠ your constraints — adapt.
- Draw diagrams.