The Python 3.13 virtualenv you're bundling with the app is 357MB, while the ONNX model is only 90.4MB.
onnxruntime has Swift bindings[1], consider using that. Or better yet use CoreML. You'll also be able to support x86 Macs with either of those.
[1]: https://github.com/microsoft/onnxruntime-swift-package-manag...