Designing a real time expense tracking app 🤯 Guys! This looks scary at first but it’s actually super simple 😅 Let me break it down: * Clean frontend for web and mobile * Async backend with FastAPI * Postgres for consistency * Redis for caching 🚀 * WebSockets for real time sync * JWT auth and HTTPS for security ( you know the drill if you watched my previous videos 😁) This is how you design systems that scale without overengineering them. If you’re learning system design backend engineering o

What is asynchronous programming 🤯 We all use it everyday building apps! It’s the reason apps like Instagram and WhatsApp feel instant instead of frozen. Asynchronous programming means your app does slow work like network calls or database requests in the background while the UI stays responsive (No blocking) This is how modern apps load data sync messages and update feeds all at the same time. If you’re learning software engineering backend development or preparing for interviews this concept