Why - is not allowed in app name

[k4wo]

What is a reason - is not allowed in a name of remote app in module federation? For host and library is not prohibited. I've tested it by eg.:

npx nx g @nx/react:host apps/portal-ui --remotes=b-ui,i-ui,p_ui --bundler=rspack --dynamic

I've noticed it in 20.0.1 version, it's weird because in the past remotes were allowed to use - in name.

[k4wo]

@Coly010 are you able to give us more details?

[Coly010]

Remotes loaded using remoteType module are technically able to use -.

However, Node Federation doesn’t like remoteType=module and React doesn’t really make sense to be forcing into ESM with Webpack and Rspack. So it uses the default remote loading option.

This requires setting a variable at runtime. That variable is given the same name as the remote. (Module federation controls this, not Nx).

Therefore, we’re now enforcing that remote names align with JS variable naming restrictions, as this is what happens at runtime.