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Environment Variables

Docker-only execution

All commands run inside Docker containers. Use the provided scripts.

Common environment variables used across W8-RL.

Docker / Ray​

  • DOCKER_GID - Docker socket group id (required if running compose directly)
  • RAY_ADDRESS - Ray cluster address (e.g., ray://ray-head:10001)

Emulator / CDP​

  • W8RL_CDP_URL or CDP_URL - CDP websocket URL (default ws://android-world:9224)
  • W8RL_ADB_HOST or ADB_HOST - ADB host (default container:android-world)

OpenEnv​

  • W8RL_OPENENV_RAY_TIMEOUT_S - Ray call timeout for OpenEnv endpoints (default 30)
  • W8RL_TASK_TYPE - OpenEnv task selector (e.g., design2code)
  • W8RL_D2C_OFFICIAL_EVAL - enable Design2Code official eval mode

OpenHands​

  • GOOGLE_APPLICATION_CREDENTIALS - path to GCP service account JSON
  • W8RL_OPENHANDS_CORO_TIMEOUT_S - OpenHands coroutine timeout (default 120)

Tinker​

  • TINKER_API_KEY - required for real Tinker API runs
  • W8RL_TINKER_RAY_TIMEOUT_S - Ray timeout for Tinker calls
  • W8RL_D2C_GROUND_TRUTH - enable ground-truth metrics
  • W8RL_D2C_INLINE_IMAGES - inline reference images

HuggingFace cache​

  • HF_HOME - tokenizer/model cache path
  • HF_HUB_ENABLE_HF_TRANSFER - enable hf_transfer fast download

Next Steps​