1. The Hook We’ve all been there. You start a new project, you want to move fast, so you plug in Firebase. It feels like magic at first. But what happens 6 months down the line when your app scales, your data becomes relational, and suddenly you are paying a premium just to run complex queries? You hit the NoSQL wall. 2. The Problem The biggest trap modern developers fall into is treating a NoSQL document store (like Firebase/Firestore) as the ultimate solution for every single app. Here is where the pain starts: Vendor Lock-in: Moving away from Firebase once your app is live is a nightmare. Complex Queries: Need to filter data based on multiple nested conditions? Good luck writing that without fetching half your database. Pricing Surprises: It's free until you accidentally run a bad query in an infinite loop and wake up to a massive bill. 3. The 'StackByUjjwal' Solution It's time to respect Relational Databases again.…