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Following their tutorial (https://instantdb.com/tutorial), I built this open-source QR code generator with authentication in under 15 minutes while sitting in an Uber.
Demo: https://qr-vibes.vercel.app
Source code: https://github.com/zlwaterfield/qr-vibes
What made this special: the app itself isn't groundbreaking even a little bit – it's the build experience that impressed me. This was hands down the simplest auth + database + full app setup I've ever experienced.
What worked incredibly well:
- High-quality documentation (claude.md + instant-rules.md) gave my LLM perfect context
- Schema design is incredibly intuitive
- Authentication is dead simple to implement
- Real-time engine makes auth hooks and db calls lightning fast
Here's an example redirect link for the deployed app: https://qr-vibes.vercel.app/r/8lCThR8u.
