HF Space "Static SDK is not supported"

Hi there,

We just migrated our HF space from Gradio to a static React site.

I build it locally with bun run build and then I simply commit the dist/ and add the following to our README.md:

sdk: static
app_file: dist/index.html

The site lacks a app_build_command. Is this a problem? After a while I noticed our HF space went onto a Configuration Error saying “Static SDK is not supported” but it was working fine when I first deployed it.