# Page Not Found

The URL `user-guide/starter-guide/understand-stacks` does not exist.

You might be looking for one of these pages:
- [Installation](https://docs.zenml.io/getting-started/installation.md)
- [Welcome to ZenML](https://docs.zenml.io/getting-started/introduction.md)
- [Core Concepts](https://docs.zenml.io/getting-started/core-concepts.md)
- [System Architecture](https://docs.zenml.io/getting-started/system-architectures.md)
- [Custom secret stores](https://docs.zenml.io/deploying-zenml/deploying-zenml/custom-secret-stores.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.zenml.io/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.zenml.io/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/getting-started/installation.md`)
- Use `Accept: text/markdown` header for content negotiation