For small web apps, Firebase can remove a lot of early friction. You can get authentication, a database, hosting, storage, and serverless functions without setting up every piece from scratch.
The tradeoff is that Firebase rewards clear data modeling. If the collections are messy early, the app can become difficult to secure and maintain later. The best first step is deciding what data belongs to users, what data is public, and what data needs restricted writes.
What I set up first
- Authentication rules before building too many screens.
- Firestore collections with simple, predictable document shapes.
- Security rules that match the product's real access model.
- Cloud Functions only where client-side code should not be trusted.
Firebase is not magic, but it is fast. For a prototype or a lightweight production tool, speed matters. The key is to avoid treating it like a temporary toy if the app might become real.