# Concepts

> Key design decisions, personas, templating, and metadata reference for Capsule

> For the complete documentation index, see [llms.txt](https://projectcapsule.dev/llms.txt).
> The HTML version of this page is at https://projectcapsule.dev/docs/operating/concepts/.


## Pages in this section

- [Architecture](https://projectcapsule.dev/docs/operating/concepts/architecture/index.md): Architecture references and considerations
- [Known Metadata](https://projectcapsule.dev/docs/operating/concepts/known-metadata/index.md): Labels and Annotations in Capsule Items
- [Templating](https://projectcapsule.dev/docs/operating/concepts/templating/index.md): Templating in Capsule Items

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Last modified August 21, 2026: feat: rewrite quickstart and refactor page ordering (#117) (#125) (040fb2a)