> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nuon.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Get up to speed on BYOC and Nuon.

Nuon is built around three pillars: connecting your app for BYOC delivery, customer installs, and enabling continuous delivery. This section covers the core concepts behind each.

## Connect Your App

Everything you define as a vendor to package your application for BYOC delivery.

<CardGroup cols={2}>
  <Card title="Nuon Apps" icon="window-maximize" href="/concepts/apps">
    Package your application code and infrastructure as versioned, installable BYOC products.
  </Card>

  <Card title="Components" icon="object-group" href="/concepts/components">
    Wire up Helm charts, Terraform modules, Kubernetes manifests, and container images.
  </Card>

  <Card title="Sandboxes" icon="border-all" href="/concepts/sandboxes">
    Define the base infrastructure layer provisioned in each customer's cloud account.
  </Card>

  <Card title="Inputs" icon="sliders" href="/concepts/app-inputs">
    Customer-supplied values — region, instance type, API keys — that configure each install.
  </Card>

  <Card title="Secrets" icon="key" href="/concepts/app-secrets">
    Manage sensitive values like credentials and API keys used in app configuration.
  </Card>

  <Card title="App Variables" icon="code" href="/concepts/app-variables">
    Store and share dynamic values across all installs of an app via the API.
  </Card>

  <Card title="Runners" icon="shoe-prints" href="/concepts/runners">
    Egress-only agents that deploy and manage installs inside customer cloud accounts.
  </Card>
</CardGroup>

## Customer installs

Deploy into customer cloud accounts and adapt to their existing infrastructure.

<CardGroup cols={2}>
  <Card title="Installs" icon="cube" href="/concepts/installs">
    Instances of your app deployed and running in a customer's cloud account.
  </Card>

  <Card title="Stacks" icon="layer-group" href="/concepts/stacks">
    Cloud-native templates that bootstrap an install in a customer's cloud account.
  </Card>

  <Card title="Operation Roles" icon="user-lock" href="/concepts/operation-roles">
    Map IAM roles to specific operations for least-privilege access in customer accounts.
  </Card>
</CardGroup>

## Continuous Delivery

Push updates with governance, audit trails, and operational control.

<CardGroup cols={2}>
  <Card title="Workflows" icon="circle-nodes" href="/concepts/workflows">
    Orchestrate the deployment, update, and teardown lifecycle of apps and components.
  </Card>

  <Card title="Actions" icon="circle-play" href="/concepts/actions">
    Run operational scripts for health checks, migrations, and day-2 operations.
  </Card>

  <Card title="Policies" icon="shield" href="/concepts/policies">
    Enforce compliance and security rules across builds and infrastructure deployments.
  </Card>
</CardGroup>