| Flag | Description |
|---|---|
| onnx | Local AI tools (background removal, voice isolation, music separation) with the official ONNX Runtime binaries |
| tts | AI voice narration (Kokoro) using <pkg>app-accessibility/espeak-ng</pkg> for phonemes |
| vulkan | Vulkan acceleration for automatic captions (whisper.cpp) |
| whisper | Fully local automatic captions and transcript editing with a bundled whisper.cpp |