Ship an application another person can use

Turn the project into a service someone can run without you narrating every step. Start with one application, one database and one hosting environment. Keep infrastructure proportional to the problem.

The deployment ladder

1. Make the local setup reproducible: dependency lockfile, example configuration without secrets, setup commands and a small sample dataset.
2. Add an API health check and structured logs with request IDs. Test provider timeouts, invalid input and database failure.
3. Keep secrets server-side. Add authentication and enforce document access in application code if the system contains private data. A prompt is not an authorization mechanism.
4. Add request limits, bounded retries, maximum tool steps, output limits and a cost budget. Include a graceful fallback when a dependency is unavailable.
5. Package the app, deploy it using the host’s current documentation, and verify it from a second device or clean browser session.
6. Keep a previous working version and write a rollback procedure. Ask one or two people to try the intended workflow and record what they could not complete.

What belongs in the README

• Problem and intended user; a short demonstration.
• Architecture, data sources and setup instructions.
• How to run tests and evaluations; actual results with sample sizes.
• Known limitations, costs, data retention and deletion behavior.
• Deployment, monitoring and rollback instructions.

A useful failure drill

Pretend the model provider is unavailable for five minutes. Your app should show a useful state, avoid endless retries and preserve the user’s work. Now repeat with an empty retrieval index. Explain how you would notice the problem and restore service.

Use FastAPI: Tutorial ↗ as a current implementation reference and Docker: Get started ↗ when you need reproducible packaging. Watch Full Stack LLM Bootcamp: LLMOps ↗ for lifecycle ideas; it was recorded in 2023, so current host and SDK documentation takes precedence.