Have you heard of the 12-Factor App? The "12 Factor App" offers a set of best practices for building modern software applications. Following these 12 principles can help developers and teams in building reliable, scalable, and manageable applications. Here's a brief overview of each principle: 1. Codebase: Have one place to keep all your code, and manage it using version control like Git. 2. Dependencies: List all the things your app needs to work properly, and make sure they're easy to install. 3. Config: Keep important settings like database credentials separate from your code, so you can change them without rewriting code. 4. Backing Services: Use other services (like databases or payment processors) as separate components that your app connects to. 5. Build, Release, Run: Make a clear distinction between preparing your app, releasing it, and running it in production. 6. Processes: Design your app so that each part doesn't rely on a specific computer or memory. It's like making LEGO blocks that fit together. 7. Port Binding: Let your app be accessible through a network port, and make sure it doesn't store critical information on a single computer. 8. Concurrency: Make your app able to handle more work by adding more copies of the same thing, like hiring more workers for a busy restaurant. 9. Disposability: Your app should start quickly and shut down gracefully, like turning off a light switch instead of yanking out the power cord. 10. Dev/Prod Parity: Ensure that what you use for developing your app is very similar to what you use in production, to avoid surprises. 11. Logs: Keep a record of what happens in your app so you can understand and fix issues, like a diary for your software. 12. Admin Processes: Run special tasks separately from your app, like doing maintenance work in a workshop instead of on the factory floor. Over to you: Where do you think these principles can have the most impact in improving software development practices? -- Subscribe to our weekly newsletter to get a Free System Design PDF (158 pages): bit.ly/3KCnWXq