> For the complete documentation index, see [llms.txt](https://docs.nuvolos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nuvolos.com/reference/configuration.md).

# Configuration

This page is the reference for configuration on Nuvolos: how environment variables and secrets work at the user, Space, and organisation levels; the distribution strategies that govern how shared content reaches its target; and the special files Nuvolos recognises (startup.sh, .bashrc, README.md).

### Where to go next

* For full Application configuration options (sizes, ports, persistence, add-ons), see [Reference › Applications](/reference/applications.md).
* For the Roles and Permissions matrix that determines who can set secrets at each level, see [Concepts › How roles are organised](/concepts/roles-secrets-and-identity/roles.md#combined-capability-summary).
* For the conceptual security model behind secrets and the override policy, see [Concepts › Secrets and the override policy](/concepts/roles-secrets-and-identity/secrets-and-the-override-policy.md).
* For step-by-step distribution workflows, see [How-to › Shared workflows › Distribution mechanic](/how-to-guides/common-workflows/object-distribution.md).