pub fn build(cfg: &Config) -> Result<Box<dyn Engine>>Expand description
Build the engine for this worker.
There’s no engine selection knob in the config any more: the
worker advertises capabilities for every backend compiled into
this binary, and routes each incoming job to the first backend
that supports its (kind, model) pair. See multi::MultiEngine.
The default build ships only the synthetic engine. Optional backends (llama, whisper, image-candle, video, tts) are added when their cargo features are enabled.