> This lets you use ONNX if you choose and it enables some interesting use cases (like running models in-browser with WASM)

If someone already has an ONNX model, there's already an in-browser capable ONNX runtime: https://onnxruntime.ai/docs/get-started/with-javascript.html...

(It does use some parts compiled to WASM under the hood, presumably for performance.)