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

# Render SDKs (per substrate)

> Substrate-specific render SDKs — DOOH, streaming, CTV, mobile, AR, gaming, automotive, smart home, wearables, audio, messaging.

EnfinitOS publishes a per-substrate render SDK for each substrate
that ships a visible surface. Each one composes
[Renderer Core](/sdks/renderer-core) and adds substrate-specific
constraints, adapters, and conventions.

<Note>
  **Publish at launch.** All render substrate SDKs listed here publish
  at the April 2027 production launch. Sandbox access is available now
  at [enfinitos.com/apply](https://enfinitos.com/apply).
</Note>

<CardGroup cols={2}>
  <Card title="DOOH Renderer" icon="rectangle-ad" href="https://enfinitos.com/developers/dooh-renderer">
    Governance-aware media-player runtime — playback, panel health,
    dimming, proof-of-play.
  </Card>

  <Card title="Streaming Player" icon="play" href="https://enfinitos.com/developers/streaming-player">
    Player extension for HLS.js, Shaka, Video.js, AVPlayer,
    ExoPlayer / Media3.
  </Card>

  <Card title="CTV App" icon="tv" href="https://enfinitos.com/developers/ctv-app">
    Roku (BrightScript), Samsung Tizen, LG webOS, Fire TV / Android TV.
  </Card>

  <Card title="Mobile" icon="mobile" href="https://enfinitos.com/developers/mobile">
    iOS (Swift), Android (Kotlin), React Native, Flutter. ATT- and
    Privacy-Sandbox-aware.
  </Card>

  <Card title="Spatial / AR" icon="vr-cardboard" href="https://enfinitos.com/developers/spatial-ar">
    visionOS 2, Quest (Jetpack XR), Magic Leap 2, Snap Spectacles,
    Unity + Unreal AR.
  </Card>

  <Card title="Gaming" icon="gamepad" href="https://enfinitos.com/developers/gaming">
    Unity 6, Unreal 5.5, Godot. IAB Gaming SIG 2024 viewability.
  </Card>

  <Card title="Automotive" icon="car" href="https://enfinitos.com/developers/automotive">
    CarPlay, Android Auto, AAOS, OEM mini-apps. Speed-gated by
    BehaviouralConstraint.
  </Card>

  <Card title="Smart Home" icon="house" href="https://enfinitos.com/developers/smart-home">
    Matter 1.4 first. Alexa, Google Home, SmartThings, HomeKit
    bridges.
  </Card>

  <Card title="Wearables" icon="watch" href="https://enfinitos.com/developers/wearables">
    watchOS 11, Wear OS 5, Fitbit OS 5, Garmin Connect IQ 7.
  </Card>

  <Card title="Audio" icon="microphone" href="https://enfinitos.com/developers/audio">
    Smart speakers + podcast + audio streaming. Voice-assistant
    LLM-extension pattern.
  </Card>

  <Card title="Messaging" icon="envelope" href="https://enfinitos.com/developers/messaging">
    Twilio, WhatsApp, APNs, FCM, RCS. Opt-out registry enforced
    pre-send.
  </Card>
</CardGroup>

The full per-SDK READMEs are rendered on the
[public developer hub](https://enfinitos.com/developers). The hub is
the source of truth for SDK-specific install commands, status
badges, and substrate constraints.