Alright, the tl;dr is that I don't like the current way of how you can use Fable with Vite. I'm referring to the steps in the get started with Vite, I don't like it and have an alternate take on it.

More thoughts on this can be read from the documentation.

A first package was pushed to npm. This was merely to reserve the package name.
You can read the code, that's is it for now.

Support for the latest .NET runtime was added in v0.1.1. Please upgrade to the latest version. Earlier versions may fail silently if the .NET 8 runtime is missing—see the changelog for details.

I talked a little bit about this project during this stream: