Building

1. Install Android NDK.
2. Install dinghy.
3. rustup target install aarch64-linux-android
4. cargo dinghy -p auto-android-aarch64-api32 build -r

The compiled libetvr_openxr_layer.so file will be located in target/aarch64-linux-android/ in the debug or release folder.

Patching the Steam Link APK

1. Get the Steam Link APK file using e.g. SideQuest to extract it from the headset.
2. Decompile the APK using apktool.
3. In the decompiled folder, put the etvr-openxr-layer.json file in the assets/openxr/1/api_layers/implicit.d/ folder.
4. Put the libetvr_openxr_layer.so file in the lib/arm64-v8a/ folder.
5. Build the APK with the changes using apktool.
6. Zipalign and sign the APK.

For now, a patched OpenXR loader is required as well, as the built-in one doesn't load implicit API layers properly.