If you’ve built a side project recently, you’ve probably used Supabase. It is an incredibly powerful open-source Firebase alternative, and their free tier is famously generous. But last week, I woke up to a dreaded email: “Your project has been scheduled to be paused due to inactivity.” My app, PDF Pro AI (a 100% private WebAssembly-based PDF editor and AI document analyzer), was getting traffic. People were actively using it. So why was Supabase threatening to shut off the lights? Here is exactly what happened, why the architecture was fundamentally mismatched, and how I permanently fixed it by migrating to Vercel Blob Storage in under an hour. The Architecture Problem: Storage vs. Database When I built the AI features for PDF Pro (like the ATS Resume Scanner and Bank Statement Analyzer ), I needed a temporary place to store the user's PDF for exactly 5 seconds. The flow looked like this: User uploads a PDF. Next.js pushes the PDF to a Supabase Storage Bucket.…