Building a production Flask app: everything I learned about auth, security, and deployment

"When I started learning Flask, every tutorial
showed me how to build a simple app. None of them
showed me how to make it production-ready. After
3 months of learning — CSRF, bcrypt, rate limiting,
security headers, logging, and Render deployment —
I packaged everything into a boilerplate. Here is
what I learned along the way."

The complete boilerplate is available on Gumroad
if you want to skip the setup: https://rajputajay8.gumroad.com/l/edmxmjz