Portal

This skill is for building Android apps that target Meta's Portal device family. Portal devices are discontinued (sales stopped end of 2022), but ADB is now enabled, so owners can sideload their own apps.

The hardware: Snapdragon-based Android tablets and TV sticks running a modified AOSP without Google Mobile Services. Several models, all touch or TV. minSdkVersion 28 (Android 9) or 29 (Android 10) depending on device.

This skill pairs with metavr (Meta VR CLI) — install it first. Use metavr adb in place of raw adb everywhere. See resources/hzdb.md for the one-line install (via npx), the MCP-into-your-editor setup, and the Portal-relevant command surface. The full metavr-cli skill ships in the same repo and can also be loaded for deeper reference.

Hard constraints — read before writing any code

If you only remember a few things, remember these. Each is a class of bug Portal apps hit constantly.